A young man wears a crisp white dress shirt with a spread collar.

"A moody, cinematic night portrait of a young man with short, soft, dark curly hair and a faint mustache, looking over his shoulder with a calm, intense, slightly aloof expression. He stands in a relaxed, angled pose with his torso turned and arms hanging loosely at his sides, one hand slightly open. He wears a crisp white dress shirt with a spread collar, top buttons undone and sleeves casually rolled to the forearms, tucked into black slim-fit trousers. A silver-cased analog wristwatch with a white dial and a brown leather strap sits on his wrist. The setting is a dark, glass-walled interior at night, with black metal window frames forming a grid, soft reflections of a high-rise building and scattered glowing lights on the glass, and a hazy grey-green concrete backdrop. Low-key lighting with a soft cool glow on his face and shirt, deep shadows, desaturated grey and charcoal tones with the white shirt as the brightest element, slight film grain, natural skin texture, fashion-editorial night photography, shot on a smartphone, vertical 2:3 aspect ratio, three-quarter body framing, sharp focus on the subject."
Tips:
Add "photorealistic, cinematic low-key lighting, subtle film grain" for a more polished look.
For a moodier feel, add "city night reflections, bokeh lights, cool blue-grey tones."
To emphasize the outfit, add "crisp white cotton shirt, high contrast against dark background."