Flashlit Night Street Portrait

primitive nighttime street photography under flash, early 2000s aesthetics; A man (**the original face in the uploaded photo must be precisely preserved, facial features must not be altered in any way, and the face must not be altered by 1%**) was sitting on a concrete step near a metal railing; Clothing: Black T-shirt, slightly damp with sweat, loose light-colored pants, very few accessories; Action: He runs his hand through his hair, glances to one side, as if reacting to something outside the frame; Emotions: fatigue, contemplation, emotional openness; Lighting: Direct flash hits his face and chest, the background turns dark with strong contrast; Texture: Real skin, visible pores, slightly glowing sweat, rough concrete steps; Composition: medium shot, asymmetrical composition, nighttime documentary feel; Granulation, noise, imperfect flash balance, unpolished realism.