SF小説の表紙

RED SHIFT CITY

Create one finished science fiction front book cover in a single generation, 1024:1536 portrait composition, flat cover artwork only, never a book mockup. Exact title text: "RED SHIFT CITY". Exact author text: "AVA SOL". Subject: a vertical city bending toward a red giant while tiny transit lights climb its spine. Composition: preserve a clean title zone, one dominant focal idea, readable silhouette at thumbnail size, and professional trade-publishing hierarchy. Style: premium cinematic concept art, strong geometry, volumetric light, vast scale, restrained detail. Color and light: deep indigo, cool chrome, and one luminous cyan or amber accent. Typography: tall geometric techno sans-serif capitals with a subtle chrome edge; render the exact title and author once only, with correct spelling, clean kerning, no extra words, no duplicate letters, and no invented publisher marks. Constraints: print-ready front cover, polished visual hierarchy, coherent anatomy and perspective. Avoid: malformed text, repeated author names, extra logos, watermarks, borders, 3D books, hands holding a book, or horizontal mockups.

THE QUIET WARP

Create one finished science fiction front book cover in a single generation, 1024:1536 portrait composition, flat cover artwork only, never a book mockup. Exact title text: "THE QUIET WARP". Exact author text: "IAN MERROW". Subject: a research ship entering a perfectly circular distortion in a star field. Composition: preserve a clean title zone, one dominant focal idea, readable silhouette at thumbnail size, and professional trade-publishing hierarchy. Style: premium cinematic concept art, strong geometry, volumetric light, vast scale, restrained detail. Color and light: deep indigo, cool chrome, and one luminous cyan or amber accent. Typography: tall geometric techno sans-serif capitals with a subtle chrome edge; render the exact title and author once only, with correct spelling, clean kerning, no extra words, no duplicate letters, and no invented publisher marks. Constraints: print-ready front cover, polished visual hierarchy, coherent anatomy and perspective. Avoid: malformed text, repeated author names, extra logos, watermarks, borders, 3D books, hands holding a book, or horizontal mockups.

CHROME PILGRIM

Create one finished science fiction front book cover in a single generation, 1024:1536 portrait composition, flat cover artwork only, never a book mockup. Exact title text: "CHROME PILGRIM". Exact author text: "TESSA RHO". Subject: a robed android walking toward a distant orbital elevator across salt flats. Composition: preserve a clean title zone, one dominant focal idea, readable silhouette at thumbnail size, and professional trade-publishing hierarchy. Style: premium cinematic concept art, strong geometry, volumetric light, vast scale, restrained detail. Color and light: deep indigo, cool chrome, and one luminous cyan or amber accent. Typography: tall geometric techno sans-serif capitals with a subtle chrome edge; render the exact title and author once only, with correct spelling, clean kerning, no extra words, no duplicate letters, and no invented publisher marks. Constraints: print-ready front cover, polished visual hierarchy, coherent anatomy and perspective. Avoid: malformed text, repeated author names, extra logos, watermarks, borders, 3D books, hands holding a book, or horizontal mockups.

ZERO COLONY

Create one finished science fiction front book cover in a single generation, 1024:1536 portrait composition, flat cover artwork only, never a book mockup. Exact title text: "ZERO COLONY". Exact author text: "M. A. VEGA". Subject: the first habitat dome glowing on an empty ice planet during a magnetic storm. Composition: preserve a clean title zone, one dominant focal idea, readable silhouette at thumbnail size, and professional trade-publishing hierarchy. Style: premium cinematic concept art, strong geometry, volumetric light, vast scale, restrained detail. Color and light: deep indigo, cool chrome, and one luminous cyan or amber accent. Typography: tall geometric techno sans-serif capitals with a subtle chrome edge; render the exact title and author once only, with correct spelling, clean kerning, no extra words, no duplicate letters, and no invented publisher marks. Constraints: print-ready front cover, polished visual hierarchy, coherent anatomy and perspective. Avoid: malformed text, repeated author names, extra logos, watermarks, borders, 3D books, hands holding a book, or horizontal mockups.

ザ・メモリー・ムーン

Create one finished science fiction front book cover in a single generation, 1024:1536 portrait composition, flat cover artwork only, never a book mockup. Exact title text: "THE MEMORY MOON". Exact author text: "ELIAS VENN". Subject: a fractured moon filled with luminous data structures above a dark ocean. Composition: preserve a clean title zone, one dominant focal idea, readable silhouette at thumbnail size, and professional trade-publishing hierarchy. Style: premium cinematic concept art, strong geometry, volumetric light, vast scale, restrained detail. Color and light: deep indigo, cool chrome, and one luminous cyan or amber accent. Typography: tall geometric techno sans-serif capitals with a subtle chrome edge; render the exact title and author once only, with correct spelling, clean kerning, no extra words, no duplicate letters, and no invented publisher marks. Constraints: print-ready front cover, polished visual hierarchy, coherent anatomy and perspective. Avoid: malformed text, repeated author names, extra logos, watermarks, borders, 3D books, hands holding a book, or horizontal mockups.

AFTER THE SUN ENGINE

Create one finished science fiction front book cover in a single generation, 1024:1536 portrait composition, flat cover artwork only, never a book mockup. Exact title text: "AFTER THE SUN ENGINE". Exact author text: "PRIYA CADE". Subject: a colossal dormant solar machine eclipsing a small repair vessel. Composition: preserve a clean title zone, one dominant focal idea, readable silhouette at thumbnail size, and professional trade-publishing hierarchy. Style: premium cinematic concept art, strong geometry, volumetric light, vast scale, restrained detail. Color and light: deep indigo, cool chrome, and one luminous cyan or amber accent. Typography: tall geometric techno sans-serif capitals with a subtle chrome edge; render the exact title and author once only, with correct spelling, clean kerning, no extra words, no duplicate letters, and no invented publisher marks. Constraints: print-ready front cover, polished visual hierarchy, coherent anatomy and perspective. Avoid: malformed text, repeated author names, extra logos, watermarks, borders, 3D books, hands holding a book, or horizontal mockups.

THE SIXTH SIGNAL

Create one finished science fiction front book cover in a single generation, 1024:1536 portrait composition, flat cover artwork only, never a book mockup. Exact title text: "THE SIXTH SIGNAL". Exact author text: "R. OKONJO". Subject: an astronaut kneeling before a cracked black monolith on a red desert plain. Composition: preserve a clean title zone, one dominant focal idea, readable silhouette at thumbnail size, and professional trade-publishing hierarchy. Style: premium cinematic concept art, strong geometry, volumetric light, vast scale, restrained detail. Color and light: deep indigo, cool chrome, and one luminous cyan or amber accent. Typography: tall geometric techno sans-serif capitals with a subtle chrome edge; render the exact title and author once only, with correct spelling, clean kerning, no extra words, no duplicate letters, and no invented publisher marks. Constraints: print-ready front cover, polished visual hierarchy, coherent anatomy and perspective. Avoid: malformed text, repeated author names, extra logos, watermarks, borders, 3D books, hands holding a book, or horizontal mockups.

NEON ORBIT

Create one finished science fiction front book cover in a single generation, 1024:1536 portrait composition, flat cover artwork only, never a book mockup. Exact title text: "NEON ORBIT". Exact author text: "K. ARROYO". Subject: a monorail streaking between rain-slick megacity towers beneath holographic light. Composition: preserve a clean title zone, one dominant focal idea, readable silhouette at thumbnail size, and professional trade-publishing hierarchy. Style: premium cinematic concept art, strong geometry, volumetric light, vast scale, restrained detail. Color and light: deep indigo, cool chrome, and one luminous cyan or amber accent. Typography: tall geometric techno sans-serif capitals with a subtle chrome edge; render the exact title and author once only, with correct spelling, clean kerning, no extra words, no duplicate letters, and no invented publisher marks. Constraints: print-ready front cover, polished visual hierarchy, coherent anatomy and perspective. Avoid: malformed text, repeated author names, extra logos, watermarks, borders, 3D books, hands holding a book, or horizontal mockups.

SALVAGE ROW

Create one finished science fiction front book cover in a single generation, 1024:1536 portrait composition, flat cover artwork only, never a book mockup. Exact title text: "SALVAGE ROW". Exact author text: "J. TANAKA". Subject: a derelict space station drifting over a ringed planet with one rescue beacon. Composition: preserve a clean title zone, one dominant focal idea, readable silhouette at thumbnail size, and professional trade-publishing hierarchy. Style: premium cinematic concept art, strong geometry, volumetric light, vast scale, restrained detail. Color and light: deep indigo, cool chrome, and one luminous cyan or amber accent. Typography: tall geometric techno sans-serif capitals with a subtle chrome edge; render the exact title and author once only, with correct spelling, clean kerning, no extra words, no duplicate letters, and no invented publisher marks. Constraints: print-ready front cover, polished visual hierarchy, coherent anatomy and perspective. Avoid: malformed text, repeated author names, extra logos, watermarks, borders, 3D books, hands holding a book, or horizontal mockups.

ORBIT OF ASH

Create one finished science fiction front book cover in a single generation, 1024:1536 portrait composition, flat cover artwork only, never a book mockup. Exact title text: "ORBIT OF ASH". Exact author text: "N. K. SATO". Subject: a solitary explorer facing a luminous ringed planet above a silent chrome city. Composition: preserve a clean title zone, one dominant focal idea, readable silhouette at thumbnail size, and professional trade-publishing hierarchy. Style: premium cinematic concept art, strong geometry, volumetric light, vast scale, restrained detail. Color and light: deep indigo, cool chrome, and one luminous cyan or amber accent. Typography: tall geometric techno sans-serif capitals with a subtle chrome edge; render the exact title and author once only, with correct spelling, clean kerning, no extra words, no duplicate letters, and no invented publisher marks. Constraints: print-ready front cover, polished visual hierarchy, coherent anatomy and perspective. Avoid: malformed text, repeated author names, extra logos, watermarks, borders, 3D books, hands holding a book, or horizontal mockups.

마지막 항해 — 韓国SFカバー

A generation ship’s final bridge, one captain’s chair facing a new star. 2026 trade-cover trend: oversized structural typography, high-contrast palette, strong readability at thumbnail size. All cover text must be Korean only; render the quoted title and author name in correct, complete Korean Hangul. Book cover with title "마지막 항해" and author name "정하준" rendered on the cover.. Workflow direction: Create the finished flat front-cover artwork itself, not a photograph or mockup of a physical book. The rectangular front cover must fill the entire output canvas edge to edge, viewed perfectly straight-on with the camera perpendicular to the artwork. Build one compelling genre-appropriate key image on a single strong subject in a single scene — never a collage of competing motifs. Follow the 2026 trade-cover direction: oversized structural title typography treated as part of the artwork, a high-contrast palette, an author name placed deliberately and secondary to the title, short correctly rendered title text in the requested language enclosed in quotation marks, and a silhouette that stays readable at 100-pixel thumbnail size in a two-second scroll, all with trim-safe breathing room. Style-specific direction: Style: premium science-fiction book cover with cinematic speculative-world design, clearly technological rather than fantasy; polished cinematic digital painting, optionally carrying a restrained retro-pulp print texture. Subject: preserve the requested explorer, machine, planet, and setting; use one scientifically coherent futuristic focal idea. Composition: portrait front-cover layout, horizon-scale environment, strong lower-third silhouette, open title-safe upper field, thumbnail readability. Lighting or Color: electric blue, white, and deep space black with one warm accent; controlled volumetric light and precise hard-surface detail. Typography: render the exact quoted title once in tall geometric techno capitals and the exact quoted author once in smaller spaced capitals; keep both crisp and correctly spelled. Output format: flat front-cover artwork only, filling the canvas edge to edge and viewed perfectly straight-on; no physical book object, medieval runes, magic portal, fantasy crystal, spine, pages, back cover, perspective, mockup, badge, logo, watermark, or duplicated text.. Avoid: physical book, 3D book, book mockup, product mockup, spine, pages, page edges, back cover, perspective view, angled cover, tabletop, pedestal, hands holding a book, room scene, drop shadow around the cover, misspelled title, crowded typography, weak focal point, busy collage of competing motifs, washed-out low contrast, text too close to edges, unrelated imagery, garbled author name, misspelled or duplicated title, misspelled author, fantasy crystal, medieval architecture, generic space collage, mockup, spine, watermark

沈黙の観測所 — 日本のSFカバー

A lonely observatory dome on a crater rim, one window glowing against the void. 2026 trade-cover trend: oversized structural typography, high-contrast palette, strong readability at thumbnail size. All cover text must be Japanese only; render the quoted title and author name in correct, complete Japanese characters. Book cover with title "沈黙の観測所" and author name "高遠イツキ" rendered on the cover.. Workflow direction: Create the finished flat front-cover artwork itself, not a photograph or mockup of a physical book. The rectangular front cover must fill the entire output canvas edge to edge, viewed perfectly straight-on with the camera perpendicular to the artwork. Build one compelling genre-appropriate key image on a single strong subject in a single scene — never a collage of competing motifs. Follow the 2026 trade-cover direction: oversized structural title typography treated as part of the artwork, a high-contrast palette, an author name placed deliberately and secondary to the title, short correctly rendered title text in the requested language enclosed in quotation marks, and a silhouette that stays readable at 100-pixel thumbnail size in a two-second scroll, all with trim-safe breathing room. Style-specific direction: Style: premium science-fiction book cover with cinematic speculative-world design, clearly technological rather than fantasy; polished cinematic digital painting, optionally carrying a restrained retro-pulp print texture. Subject: preserve the requested explorer, machine, planet, and setting; use one scientifically coherent futuristic focal idea. Composition: portrait front-cover layout, horizon-scale environment, strong lower-third silhouette, open title-safe upper field, thumbnail readability. Lighting or Color: electric blue, white, and deep space black with one warm accent; controlled volumetric light and precise hard-surface detail. Typography: render the exact quoted title once in tall geometric techno capitals and the exact quoted author once in smaller spaced capitals; keep both crisp and correctly spelled. Output format: flat front-cover artwork only, filling the canvas edge to edge and viewed perfectly straight-on; no physical book object, medieval runes, magic portal, fantasy crystal, spine, pages, back cover, perspective, mockup, badge, logo, watermark, or duplicated text.. Avoid: physical book, 3D book, book mockup, product mockup, spine, pages, page edges, back cover, perspective view, angled cover, tabletop, pedestal, hands holding a book, room scene, drop shadow around the cover, misspelled title, crowded typography, weak focal point, busy collage of competing motifs, washed-out low contrast, text too close to edges, unrelated imagery, garbled author name, misspelled or duplicated title, misspelled author, fantasy crystal, medieval architecture, generic space collage, mockup, spine, watermark

オービタル・デラックス

A chrome starliner with retro halftone print texture crossing a rising planet. 2026 trade-cover trend: oversized structural typography, high-contrast palette, strong readability at thumbnail size. All cover text must be English only. Book cover with title "Orbital Deluxe" and author name "Dexter Lam" rendered on the cover.. Workflow direction: Create the finished flat front-cover artwork itself, not a photograph or mockup of a physical book. The rectangular front cover must fill the entire output canvas edge to edge, viewed perfectly straight-on with the camera perpendicular to the artwork. Build one compelling genre-appropriate key image on a single strong subject in a single scene — never a collage of competing motifs. Follow the 2026 trade-cover direction: oversized structural title typography treated as part of the artwork, a high-contrast palette, an author name placed deliberately and secondary to the title, short correctly rendered title text in the requested language enclosed in quotation marks, and a silhouette that stays readable at 100-pixel thumbnail size in a two-second scroll, all with trim-safe breathing room. Style-specific direction: Style: premium science-fiction book cover with cinematic speculative-world design, clearly technological rather than fantasy; polished cinematic digital painting, optionally carrying a restrained retro-pulp print texture. Subject: preserve the requested explorer, machine, planet, and setting; use one scientifically coherent futuristic focal idea. Composition: portrait front-cover layout, horizon-scale environment, strong lower-third silhouette, open title-safe upper field, thumbnail readability. Lighting or Color: electric blue, white, and deep space black with one warm accent; controlled volumetric light and precise hard-surface detail. Typography: render the exact quoted title once in tall geometric techno capitals and the exact quoted author once in smaller spaced capitals; keep both crisp and correctly spelled. Output format: flat front-cover artwork only, filling the canvas edge to edge and viewed perfectly straight-on; no physical book object, medieval runes, magic portal, fantasy crystal, spine, pages, back cover, perspective, mockup, badge, logo, watermark, or duplicated text.. Avoid: physical book, 3D book, book mockup, product mockup, spine, pages, page edges, back cover, perspective view, angled cover, tabletop, pedestal, hands holding a book, room scene, drop shadow around the cover, misspelled title, crowded typography, weak focal point, busy collage of competing motifs, washed-out low contrast, text too close to edges, unrelated imagery, garbled author name, misspelled or duplicated title, misspelled author, fantasy crystal, medieval architecture, generic space collage, mockup, spine, watermark

The Long Signal

A deep-space antenna array listening under twin auroras on an ice moon. 2026 trade-cover trend: oversized structural typography, high-contrast palette, strong readability at thumbnail size. All cover text must be English only. Book cover with title "The Long Signal" and author name "Ingrid Sato" rendered on the cover.. Workflow direction: Create the finished flat front-cover artwork itself, not a photograph or mockup of a physical book. The rectangular front cover must fill the entire output canvas edge to edge, viewed perfectly straight-on with the camera perpendicular to the artwork. Build one compelling genre-appropriate key image on a single strong subject in a single scene — never a collage of competing motifs. Follow the 2026 trade-cover direction: oversized structural title typography treated as part of the artwork, a high-contrast palette, an author name placed deliberately and secondary to the title, short correctly rendered title text in the requested language enclosed in quotation marks, and a silhouette that stays readable at 100-pixel thumbnail size in a two-second scroll, all with trim-safe breathing room. Style-specific direction: Style: premium science-fiction book cover with cinematic speculative-world design, clearly technological rather than fantasy; polished cinematic digital painting, optionally carrying a restrained retro-pulp print texture. Subject: preserve the requested explorer, machine, planet, and setting; use one scientifically coherent futuristic focal idea. Composition: portrait front-cover layout, horizon-scale environment, strong lower-third silhouette, open title-safe upper field, thumbnail readability. Lighting or Color: electric blue, white, and deep space black with one warm accent; controlled volumetric light and precise hard-surface detail. Typography: render the exact quoted title once in tall geometric techno capitals and the exact quoted author once in smaller spaced capitals; keep both crisp and correctly spelled. Output format: flat front-cover artwork only, filling the canvas edge to edge and viewed perfectly straight-on; no physical book object, medieval runes, magic portal, fantasy crystal, spine, pages, back cover, perspective, mockup, badge, logo, watermark, or duplicated text.. Avoid: physical book, 3D book, book mockup, product mockup, spine, pages, page edges, back cover, perspective view, angled cover, tabletop, pedestal, hands holding a book, room scene, drop shadow around the cover, misspelled title, crowded typography, weak focal point, busy collage of competing motifs, washed-out low contrast, text too close to edges, unrelated imagery, garbled author name, misspelled or duplicated title, misspelled author, fantasy crystal, medieval architecture, generic space collage, mockup, spine, watermark

Terraform Blues

A single domed greenhouse glowing amber on a dust-storm Martian plain. 2026 trade-cover trend: oversized structural typography, high-contrast palette, strong readability at thumbnail size. All cover text must be English only. Book cover with title "Terraform Blues" and author name "Hollis Reyes" rendered on the cover.. Workflow direction: Create the finished flat front-cover artwork itself, not a photograph or mockup of a physical book. The rectangular front cover must fill the entire output canvas edge to edge, viewed perfectly straight-on with the camera perpendicular to the artwork. Build one compelling genre-appropriate key image on a single strong subject in a single scene — never a collage of competing motifs. Follow the 2026 trade-cover direction: oversized structural title typography treated as part of the artwork, a high-contrast palette, an author name placed deliberately and secondary to the title, short correctly rendered title text in the requested language enclosed in quotation marks, and a silhouette that stays readable at 100-pixel thumbnail size in a two-second scroll, all with trim-safe breathing room. Style-specific direction: Style: premium science-fiction book cover with cinematic speculative-world design, clearly technological rather than fantasy; polished cinematic digital painting, optionally carrying a restrained retro-pulp print texture. Subject: preserve the requested explorer, machine, planet, and setting; use one scientifically coherent futuristic focal idea. Composition: portrait front-cover layout, horizon-scale environment, strong lower-third silhouette, open title-safe upper field, thumbnail readability. Lighting or Color: electric blue, white, and deep space black with one warm accent; controlled volumetric light and precise hard-surface detail. Typography: render the exact quoted title once in tall geometric techno capitals and the exact quoted author once in smaller spaced capitals; keep both crisp and correctly spelled. Output format: flat front-cover artwork only, filling the canvas edge to edge and viewed perfectly straight-on; no physical book object, medieval runes, magic portal, fantasy crystal, spine, pages, back cover, perspective, mockup, badge, logo, watermark, or duplicated text.. Avoid: physical book, 3D book, book mockup, product mockup, spine, pages, page edges, back cover, perspective view, angled cover, tabletop, pedestal, hands holding a book, room scene, drop shadow around the cover, misspelled title, crowded typography, weak focal point, busy collage of competing motifs, washed-out low contrast, text too close to edges, unrelated imagery, garbled author name, misspelled or duplicated title, misspelled author, fantasy crystal, medieval architecture, generic space collage, mockup, spine, watermark

Beneath Two Suns

Two suns setting over a coastal megacity as crowds watch from the rooftops. 2026 trade-cover trend: oversized structural typography, high-contrast palette, strong readability at thumbnail size. All cover text must be English only. Book cover with title "Beneath Two Suns" and author name "Talia Okafor" rendered on the cover.. Workflow direction: Create the finished flat front-cover artwork itself, not a photograph or mockup of a physical book. The rectangular front cover must fill the entire output canvas edge to edge, viewed perfectly straight-on with the camera perpendicular to the artwork. Build one compelling genre-appropriate key image on a single strong subject in a single scene — never a collage of competing motifs. Follow the 2026 trade-cover direction: oversized structural title typography treated as part of the artwork, a high-contrast palette, an author name placed deliberately and secondary to the title, short correctly rendered title text in the requested language enclosed in quotation marks, and a silhouette that stays readable at 100-pixel thumbnail size in a two-second scroll, all with trim-safe breathing room. Style-specific direction: Style: premium science-fiction book cover with cinematic speculative-world design, clearly technological rather than fantasy; polished cinematic digital painting, optionally carrying a restrained retro-pulp print texture. Subject: preserve the requested explorer, machine, planet, and setting; use one scientifically coherent futuristic focal idea. Composition: portrait front-cover layout, horizon-scale environment, strong lower-third silhouette, open title-safe upper field, thumbnail readability. Lighting or Color: electric blue, white, and deep space black with one warm accent; controlled volumetric light and precise hard-surface detail. Typography: render the exact quoted title once in tall geometric techno capitals and the exact quoted author once in smaller spaced capitals; keep both crisp and correctly spelled. Output format: flat front-cover artwork only, filling the canvas edge to edge and viewed perfectly straight-on; no physical book object, medieval runes, magic portal, fantasy crystal, spine, pages, back cover, perspective, mockup, badge, logo, watermark, or duplicated text.. Avoid: physical book, 3D book, book mockup, product mockup, spine, pages, page edges, back cover, perspective view, angled cover, tabletop, pedestal, hands holding a book, room scene, drop shadow around the cover, misspelled title, crowded typography, weak focal point, busy collage of competing motifs, washed-out low contrast, text too close to edges, unrelated imagery, garbled author name, misspelled or duplicated title, misspelled author, fantasy crystal, medieval architecture, generic space collage, mockup, spine, watermark

サルベージ・リグ・セブン

A lone salvage pilot drifting toward a colossal derelict ring above a gas giant. 2026 trade-cover trend: oversized structural typography, high-contrast palette, strong readability at thumbnail size. All cover text must be English only. Book cover with title "Salvage Rig Seven" and author name "Marcus Chen" rendered on the cover.. Workflow direction: Create the finished flat front-cover artwork itself, not a photograph or mockup of a physical book. The rectangular front cover must fill the entire output canvas edge to edge, viewed perfectly straight-on with the camera perpendicular to the artwork. Build one compelling genre-appropriate key image on a single strong subject in a single scene — never a collage of competing motifs. Follow the 2026 trade-cover direction: oversized structural title typography treated as part of the artwork, a high-contrast palette, an author name placed deliberately and secondary to the title, short correctly rendered title text in the requested language enclosed in quotation marks, and a silhouette that stays readable at 100-pixel thumbnail size in a two-second scroll, all with trim-safe breathing room. Style-specific direction: Style: premium science-fiction book cover with cinematic speculative-world design, clearly technological rather than fantasy; polished cinematic digital painting, optionally carrying a restrained retro-pulp print texture. Subject: preserve the requested explorer, machine, planet, and setting; use one scientifically coherent futuristic focal idea. Composition: portrait front-cover layout, horizon-scale environment, strong lower-third silhouette, open title-safe upper field, thumbnail readability. Lighting or Color: electric blue, white, and deep space black with one warm accent; controlled volumetric light and precise hard-surface detail. Typography: render the exact quoted title once in tall geometric techno capitals and the exact quoted author once in smaller spaced capitals; keep both crisp and correctly spelled. Output format: flat front-cover artwork only, filling the canvas edge to edge and viewed perfectly straight-on; no physical book object, medieval runes, magic portal, fantasy crystal, spine, pages, back cover, perspective, mockup, badge, logo, watermark, or duplicated text.. Avoid: physical book, 3D book, book mockup, product mockup, spine, pages, page edges, back cover, perspective view, angled cover, tabletop, pedestal, hands holding a book, room scene, drop shadow around the cover, misspelled title, crowded typography, weak focal point, busy collage of competing motifs, washed-out low contrast, text too close to edges, unrelated imagery, garbled author name, misspelled or duplicated title, misspelled author, fantasy crystal, medieval architecture, generic space collage, mockup, spine, watermark

시간의 항구 — Korean Sci Fi Cover

A harbor where ships from different eras moor side by side under aurora light. 2026 trade-cover trend: oversized structural typography, high-contrast palette, strong readability at thumbnail size. All cover text must be Korean only; render the quoted title and author name in correct, complete Korean Hangul. Book cover with title "시간의 항구" and author name "한겨울" rendered on the cover.. Workflow direction: Create the finished flat front-cover artwork itself, not a photograph or mockup of a physical book. The rectangular front cover must fill the entire output canvas edge to edge, viewed perfectly straight-on with the camera perpendicular to the artwork. Build a compelling genre-appropriate key image, readable title hierarchy, deliberately placed author name, short correctly rendered Chinese or English title text enclosed in quotation marks, strong silhouette at thumbnail size, and trim-safe breathing room for practical editorial use. Style-specific direction: Style: premium science-fiction book cover with cinematic speculative-world design, clearly technological rather than fantasy. Subject: preserve the requested explorer, machine, planet, and setting; use one scientifically coherent futuristic focal idea. Composition: portrait front-cover layout, horizon-scale environment, strong lower-third silhouette, open title-safe upper field, thumbnail readability. Lighting or Color: deep indigo and cool chrome with one amber accent, controlled volumetric light, precise hard-surface detail. Typography: render the exact quoted title once in tall geometric techno capitals and the exact quoted author once in smaller spaced capitals; keep both crisp and correctly spelled. Output format: flat front-cover artwork only, filling the canvas edge to edge and viewed perfectly straight-on; no physical book object, medieval runes, magic portal, fantasy crystal, spine, pages, back cover, perspective, mockup, badge, logo, watermark, or duplicated text.. Avoid: physical book, 3D book, book moc

第二の太陽 — 韓国SFカバー

Two suns setting over a coastal city as people look up from the rooftops. 2026 trade-cover trend: oversized structural typography, high-contrast palette, strong readability at thumbnail size. All cover text must be Korean only; render the quoted title and author name in correct, complete Korean Hangul. Book cover with title "두 번째 태양" and author name "우지호" rendered on the cover.. Workflow direction: Create the finished flat front-cover artwork itself, not a photograph or mockup of a physical book. The rectangular front cover must fill the entire output canvas edge to edge, viewed perfectly straight-on with the camera perpendicular to the artwork. Build a compelling genre-appropriate key image, readable title hierarchy, deliberately placed author name, short correctly rendered Chinese or English title text enclosed in quotation marks, strong silhouette at thumbnail size, and trim-safe breathing room for practical editorial use. Style-specific direction: Style: premium science-fiction book cover with cinematic speculative-world design, clearly technological rather than fantasy. Subject: preserve the requested explorer, machine, planet, and setting; use one scientifically coherent futuristic focal idea. Composition: portrait front-cover layout, horizon-scale environment, strong lower-third silhouette, open title-safe upper field, thumbnail readability. Lighting or Color: deep indigo and cool chrome with one amber accent, controlled volumetric light, precise hard-surface detail. Typography: render the exact quoted title once in tall geometric techno capitals and the exact quoted author once in smaller spaced capitals; keep both crisp and correctly spelled. Output format: flat front-cover artwork only, filling the canvas edge to edge and viewed perfectly straight-on; no physical book object, medieval runes, magic portal, fantasy crystal, spine, pages, back cover, perspective, mockup, badge, logo, watermark, or duplicated text.. Avoid: physical book, 3D book, book mockup,

Premium science-fiction front cover titled "ORBIT OF ASH" by "N. K. SATO", a solitary explorer facing a luminous ringed planet above a chrome city horizon.

灰の軌道 — SFカバー