A man sitting on a concrete barrier near a river under a cloudy sky. He is facing slightly upward with a relaxed posture, hands resting on his knees. He wears a grey knitted beanie, black rectangular sunglasses, a white open-collar shirt with a slightly wrinkled texture, a long black overcoat, and dark loose-fitting pants. He has a short beard and mustache. The image is framed from the knees up, captured at eye level with a straight-on angle. The background shows calm river water, docked boats, distant buildings, and an overcast sky. Lighting is natural and diffused, with soft shadows due to the cloud cover. The color palette includes grey, white, black, and desaturated blues. The man’s skin texture must appear realistic with visible pores and natural shading. Hands and arms must be anatomically correct and proportionate. Clothing textures must reflect soft wool for the coat, lightweight cotton for the shirt, and matte fabric for the pants. The concrete surface must show clear grain and edge definition.