プロンプト
A lone silhouette before the only red doorway on a snowy residential street. 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 "Red Door Number Nine" and author name "Marcus Vane" 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 mystery-thriller book cover with cinematic noir or dark-academia tension and a contemporary publishing finish; the author name reads as a brand element.
Subject: preserve the requested location, figure, clue, and era; center one charged visual mystery instead of unrelated crime props.
Composition: portrait front-cover layout, bold silhouette or symbolic object, long visual corridor, generous title-safe upper area, strong thumbnail contrast.
Lighting or Color: low-key light with one hard source and long shadows; slate blue, charcoal, and restrained sodium amber; grounded photorealism where it deepens the dread.
Typography: render the exact quoted title once in stark condensed sans-serif capitals at commanding scale and the exact quoted author once in clean spaced type placed with brand confidence; 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, gore, police tape collage, spine, pages, back cover, perspective, mockup, badge, logo, watermark, duplicated text, or cropped lettering.. 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 cropped title, misspelled author, duplicated text, landscape layout, gore, generic police collage, mockup, spine, watermark
