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[Subject] A bold black campaign poster featuring four vertically cropped portrait panels of contemporary street-style personalities, combined with oversized headline typography promoting an AI image model positioned as culturally fluent and trend-aware.

[Environment] Graphic poster layout on a matte black background with repeated brand-strip text along the top and bottom borders, four central portrait slices showing casual selfie-style fashion and creator aesthetics, and stacked statement copy above and below the image panels.

[Composition/Camera] Symmetrical editorial poster design, headline at the top, four equal-width portrait columns through the middle, manifesto-style subheadline at the bottom, centered alignment, high-contrast hierarchy, and compact social-poster proportions.

[Lighting] Mixed portrait lighting across the four source panels, but unified by the poster treatment: bright face exposure, crisp tonal separation, controlled contrast, and a clean black field that lets the white, red, and yellow typography dominate.

[Style/Rendering] Contemporary AI-startup launch poster, street-culture campaign aesthetic, bold sans-serif typography, collage-meets-advertising graphic design, and polished digital-brand presentation with social-media-native energy.

[Detail constraints] Preserve the four-portrait collage structure, keep the black background matte and uncluttered, maintain strong typographic contrast with white primary text and accent color emphasis, avoid excessive texture overlays, and ensure the design reads like a campaign manifesto rather than a random collage.

Negative prompt: weak typography, cluttered layout, low contrast, too many portrait panels, muddy black background, decorative fonts, blurred faces, uneven spacing, pastel palette, broken alignment, stock-photo genericity, text distortion, watermark.

Suggested parameters: square poster ratio, high-contrast graphic design, bold editorial typography, brand-campaign polish, collage portrait layout, crisp digital finish.

Delta prompt strategy:
1. If the layout feels weak, add “strict centered hierarchy with headline, portrait band, and manifesto line clearly separated.”
2. If the poster loses campaign clarity, add “AI startup launch visual with assertive ad-copy structure and strong graphic intent.”
3. If the portraits feel inconsistent, add “four coordinated street-style creator portraits unified by common cropping and tonal treatment.”
4. If the typography lacks force, add “oversized bold sans-serif lettering with crisp spacing and poster-grade readability.”
5. If the background becomes flat in a bad way, add “deep matte black field with subtle print-poster texture but no clutter.”
6. If the colors drift too much, add “restricted black, white, red, and yellow palette with minimal extra accents.”
7. If the image feels too corporate, add “street-culture editorial energy with social-native portrait authenticity.”
8. If the borders feel empty, add “repeated narrow brand strip text running across the top and bottom edges.”
9. If the result becomes too collage-heavy, add “clean equal-width panel rhythm and disciplined visual spacing.”
10. If the poster lacks originality, add “cultural-intelligence manifesto poster merging creator portraiture and AI-brand provocation.”