Reference: use the photo I uploaded as the person to portray.

Subject: a stylish young man seated casually on a dark, modern indoor sofa. His posture is relaxed and self-assured: one arm stretched along the top of the backrest, the other hand resting loosely on his lap.
Look: dark hair neatly styled, a short well-kept beard, medium warm skin tone, black rectangular sunglasses, a calm and composed face.
Outfit: a light sage-green linen button-down, collar slightly open to show a thin chain necklace; cream / off-white trousers.
Light: soft natural daylight coming through a large window next to him, with greenery visible outside for a fresh lifestyle feel.
Background: a clean, minimal interior with soft shadows.
Detail: realistic skin texture, highly detailed fabric folds, sharp focus.
Style: ultra-realistic and cinematic, cinematic depth of field, professional color grading, hyper-realistic lighting.
Output: portrait orientation, 4:5 aspect ratio, 8K resolution.