Realistic Night Rooftop Portrait of a Man | White Shirt Urban City Photography

Create an ultra-realistic full-body nighttime DSLR portrait of the exact same young man from the uploaded reference image. Preserve his original facial identity, facial structure, skin tone, hairstyle, beard and moustache exactly. Do not change his face or identity. Outfit: A clean white casual button-down shirt with an open collar, one chest pocket and sleeves rolled up to the elbows, paired with relaxed-fit black trousers. Add a premium silver metal wristwatch and a simple silver ring. Pose: Sitting casually on a rough concrete rooftop boundary wall, facing directly towards the camera. Both legs relaxed and slightly apart, hands resting naturally together between his thighs. Maintain a calm, confident expression with a subtle natural smile. Background: An urban rooftop at night with a deep navy-blue sky, distant residential buildings illuminated by scattered white and blue windows, dark green tree silhouettes and subtle city lights. The concrete rooftop parapet remains visible in the foreground. Lighting: Direct soft camera flash illuminating the subject naturally, creating a clear separation between the brightly lit subject and the darker nighttime city background. Preserve realistic shadows and natural skin tones. Photography: Vertical 4:5 composition, full-body seated portrait, eye-level camera angle, professional DSLR night photography, 50mm lens, realistic depth, sharp facial details, natural skin texture, authentic fabric details and balanced nighttime exposure. Negative Prompt: Changed identity, altered facial features, different hairstyle, artificial skin smoothing, distorted hands, extra fingers, incorrect watch, unnatural sitting posture, overexposed face, blurry subject, cartoon, CGI, text, watermark. Insert discreet watermark in the lower right corner of the image, vertical text (rotated 90°), written "aipromptlabs.online", Calibri Light font, white color with low opacity (semi-transparent), medium size. Extreme sharpness on the face, fabric texture and typography of the letters. Shot on Canon EOS R5, 50mm f/2.8, studio light.