Relaxed portrait on a leather sofa.

"A clean, candid lifestyle portrait of a young man with thick, soft, tousled black wavy hair, a light mustache, and a short chin beard, looking at the camera with a calm, composed, slightly serious expression. He sits relaxed on a black tufted leather sofa, one arm stretched along the backrest, the other resting on the armrest, with one leg crossed over the other. He wears a light pink and white vertical-striped cotton button-up shirt with a spread collar and sleeves rolled to the forearms, tucked into black pleated wide-leg trousers, with black ribbed socks, glossy black leather boots, and a silver analog wristwatch. The setting is a modern lounge with a white wall behind him, a black glossy panel and a light switch plate on the left, a second black leather armchair on the right, and a warm wooden floor. Soft, even indoor lighting, a minimal palette of blush pink, black, and white, natural skin texture, shallow depth of field, candid lifestyle photography, shot on a smartphone, vertical 9:16 aspect ratio, full-body seated framing, sharp focus on the subject."
Tips:
Add "photorealistic, soft ambient lighting, modern minimalist lounge" for a more polished look.
For a moodier feel, add "cinematic color grading, deep shadows, glossy leather reflections."
To emphasize the outfit, add "crisp pastel stripes, tailored wide-leg trousers, polished leather boots."