Studio portrait of a South Korean male pathologist, age 34; light-medium skin, neutral-cool; short side-part with a soft cowlick; thin-rim glasses; white coat over a charcoal knit (non-branded); neutral mid-gray seamless; clamshell soft key + subtle hair light; 105mm macro-sharp. Expression: composed, slight half-smile with relaxed jaw; gaze steady. Face realism: tiny beauty mark high on the right cheek, very slight eyelid asymmetry, gentle forehead lines only visible when he smiles; light beard shadow; skin pores visible along the nose/cheeks. Negative: over-retouch, plastic sheen, perfect symmetry, logos, watermarks, overly stylized lighting.