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[Subject] Architectural event-venue exterior with massive conference branding wraps. No dominant close-up person in foreground. Primary subject is a modern building facade featuring a giant turquoise-to-blue gradient banner for "1 BILLION FOLLOWERS SUMMIT" and supporting English/Arabic text. Large numeral "18" appears as event mark near top-left area of the wrap.

[Environment] Urban downtown setting with high-rise buildings in background under overcast daylight. Main entrance is centered with tall glass doors/recessed lobby. Street-level event barricades/signage and vertical flag banners visible near bottom middle. Partial metal art/sculpture element appears on right foreground edge.

[Composition/Camera] Vertical smartphone shot, medium-wide architectural framing. Camera from street level, slight upward perspective. Building occupies most of frame; event graphics dominate center-left and top areas. No heavy tilt, documentary capture style.

[Lighting] Soft cloudy daylight, low contrast, muted highlights. Even exposure across facade, no dramatic shadows.

[Color palette] Dominant cyan, teal, and blue gradient event branding; neutral gray building structure; black/dark glass entrance; small accent colors from faces and signage at lower sections.

[Style/Rendering] Real-world event reportage photo, clean but slightly compressed mobile image quality. Emphasis on scale of branding and venue authority.

[Detail constraints] Keep venue-scale branded wrap with bilingual text style, large numeral mark, and phrase "1 BILLION FOLLOWERS SUMMIT". Preserve central entrance cavity and urban background towers. Maintain soft overcast mood and realistic street-level perspective. Do not replace with indoor scene, stage photo, or close-up portraits.

Negative prompt: indoor conference room, crowd close-ups, stage lights, night scene, neon cyber colors, fantasy architecture, empty plain building without branding, cropped text-only poster, cartoon rendering, lens flare overload, watermark, logos unrelated to summit.

Suggested parameters: aspect ratio 4:5, lens 24-28mm equivalent, deep focus f/5.6-f/8 look, steps 26-36, CFG/style strength 4.5-6, sampler DPM++ 2M, seed 617442.

Delta prompt strategy (top drift risks + corrective micro-prompts):
1) Branding too small -> "giant full-facade summit wrap occupying most of building front"
2) Wrong location mood -> "modern urban business district with high-rise context"
3) Entrance disappears -> "large recessed glass entrance centered in the middle"
4) Text unreadable/removed -> "prominent event typography including '1 BILLION FOLLOWERS SUMMIT'"
5) Camera too close -> "street-level medium-wide framing capturing entire front facade"
6) Lighting too dramatic -> "soft overcast daylight with low-contrast shadows"
7) Color palette shifts -> "teal-cyan gradient branding over neutral gray architecture"
8) Scene turns crowded -> "minimal visible people, architecture and signage are primary"
9) Perspective distortion -> "slight upward but mostly natural vertical lines"
10) Style becomes CGI -> "documentary smartphone photo realism, not 3D render"