A young man wears a vivid royal-blue linen button-up shirt.

"A clean, candid lifestyle portrait of a young man with thick, tight black curly hair in a short, rounded crop, smiling softly with a calm, confident expression as he looks at the camera. He stands upright facing forward with both hands tucked casually into his pockets. He wears a vivid royal-blue linen button-up shirt with a chest pocket, open at the collar with sleeves rolled to the forearms, loose white linen trousers, and a white-strapped digital wristwatch. The setting is the exterior of a modern café, with a large black-framed glass window and door on the left reflecting soft silhouettes and trees, and a horizontal warm-toned wooden slat wall on the right. In the foreground, lush green tropical plants and variegated snake plant leaves frame the bottom of the image. Soft, diffused overcast daylight, fresh color palette of blue, white, green and warm wood tones, natural skin texture, shallow depth of field, minimalist lifestyle photography, shot on a smartphone, vertical 3:4 aspect ratio, full-body framing, sharp focus on the subject."
Tips:
Add "photorealistic, soft natural light, subtle film grain" for a more polished look.
For a warmer mood, add "golden hour sunlight, gentle rim light on hair."
To make the colors pop, add "vivid cobalt-blue shirt, crisp white trousers, lush green foliage."