A moody black-and-white mall portrait with strong contrast.

"A moody black-and-white portrait of a young man with thick, soft, tousled dark curly hair falling over his forehead, gazing off to the side with a calm, aloof, slightly serious expression and his chin slightly lifted. He sits relaxed on a railing ledge, leaning back with both arms resting at his sides, one hand loosely holding a smartphone at the bottom edge of the frame. He wears a black cotton button-up shirt with a spread collar, the top buttons undone, sleeves rolled to the elbows, and a small embroidered logo on the chest, paired with black trousers. The setting is a multi-level shopping mall interior at night, with glass balustrades, metal handrails catching streaks of light, storefronts, and upper-floor walkways softly blurred behind him. Low-key ambient lighting with cool reflections along the railings, high-contrast monochrome tones with deep blacks and silvery greys, subtle film grain, natural skin texture, candid fashion-editorial street style, shot on a smartphone, vertical 4:5 aspect ratio, three-quarter body framing, sharp focus on the face."
Tips:
Add "photorealistic, cinematic black and white, soft film grain" for a more polished look.
For more drama, add "high contrast, deep shadows, urban night atmosphere."
To avoid brand issues, replace the chest logo with "a small minimal embroidered emblem."

Copy the complete prompt and use your own reference photos where requested.