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[Subject] One young woman in her 20s with fair-light skin, long black hair pulled into a high ponytail, soft face-framing strands, large round silver wire-frame glasses, and medium hoop earrings. She wears a fitted black sleeveless evening dress with thin straps and subtle pink piping or contour seams tracing the bodice and hip lines. Her body is turned away in a graceful over-the-shoulder pose, showing the profile of the back and side waist while she turns her head toward the camera with a bright confident smile. Her posture is elegant, relaxed, and red-carpet-ready, with one arm bent softly at the waist and the other held naturally behind or alongside the body.

[Environment] Hollywood-style premiere photocall or red-carpet step-and-repeat backdrop. Clean light-gray or white sponsor wall filled with repeated black and gray logo marks and text, slightly out of focus. The specific logo content should read as generic blurred sponsor branding rather than perfectly legible copyrighted marks. Background should feel like a media wall at a film-industry event. A few soft circular white bokeh spots or flash reflections can float in the foreground or midground, suggesting press lights and lens flare specks.

[Composition/Camera] Vertical portrait framing, medium shot from upper thigh/hip area to just above the head. Camera at about chest height, slightly behind the subject’s body line so the pose reads as a turn-back glance. Subject placed just off-center, occupying the right-middle of frame, while the sponsor backdrop fills the rest. 85mm portrait-lens feel with shallow depth of field so the subject is crisp and the logos behind are softened. Keep the figure fully readable with flattering proportions and no extreme distortion.

[Lighting] Bright event-style lighting with soft frontal fill and slight direct-flash crispness. The face, shoulders, and dress should be evenly lit with clean highlights on the glasses rims and earrings. Background remains bright and controlled, with no deep shadows. Slight glamorous glow is acceptable, but keep the image realistic and stable like a premium smartphone or press-line capture.

[Style/Rendering] Photorealistic red-carpet portrait with polished social-media realism. Clean skin, realistic hair shine, flattering event light, and subtle couture styling. The mood should feel like a modern entertainment-industry premiere still or celebrity photocall image. Maintain a realistic, slightly glossy public-event look rather than editorial overprocessing or fantasy glamour.

[Detail constraints] Keep exactly one female subject in an over-the-shoulder red-carpet pose. Preserve the high ponytail, round glasses, hoop earrings, fitted black dress with pink contour piping, and the blurred sponsor backdrop. Maintain the bright photocall lighting and the smiling turn-back expression. Do not add a literal red carpet floor, other attendees, paparazzi, ropes, microphones, or text overlays. Background branding should stay generic and slightly blurred, not razor-sharp and not empty.

Negative prompt: text overlay, watermark, logo in foreground, extra people, paparazzi crowd, microphone, handbag, necklace, dramatic dark shadows, fantasy sparkle effects, anime style, cartoon rendering, incorrect dress color, missing glasses, short hair, messy hair, heavy gaudy makeup, floor-length gown train, empty plain studio wall, illegible anatomy, warped shoulders, distorted smile, oversized logos in sharp focus.

Suggested parameters for reproducibility: aspect ratio 4:5; focal length feel 85mm; aperture f/2.8 look; 28-36 steps; CFG/style strength 5.5-7.5; sampler DPM++ 2M Karras or equivalent; seed suggestion 902614355.

Delta prompt strategy:
1. If the pose becomes frontal: append "body turned away with an elegant over-the-shoulder glance back toward the camera".
2. If the dress loses the pink detail: append "fitted black dress with delicate pink contour piping tracing the torso and hips".
3. If the glasses disappear: append "large round silver wire-frame glasses reflecting the press lights".
4. If the hair changes: append "long black high ponytail with smooth volume and a few loose face-framing strands".
5. If the backdrop becomes generic: append "Hollywood premiere sponsor step-and-repeat wall with softly blurred monochrome logos".
6. If the lighting gets too dramatic: append "bright photocall lighting with soft direct-flash crispness and even face illumination".
7. If extra event elements appear: append "no crowd, no microphones, no ropes, only the subject and sponsor wall".
8. If the subject looks too fashion-editorial and cold: append "cute confident smile, approachable public-event energy".
9. If the background logos become too sharp: append "sponsor marks softly out of focus, readable as media-wall texture rather than exact text".
10. If the image loses its public-event feel: append "high-end smartphone or press-line portrait captured at a Hollywood premiere photocall".