Portrait de luxe : Éclairage Rembrandt à l'heure dorée

An American white man with sharp jawline and defined facial features, luxury menswear campaign studio portrait, wearing a deep burgundy velvet Zegna blazer over a black turtleneck, hair neatly groomed. Lighting: warm tungsten key light from below-right creating golden hour skin tones against a deep black background - pure Rembrandt lighting. His hand raised slightly, fingers resting against his jaw, rings catching the tungsten glow. Shot at medium close-up: chest to top of head. Expression: intense, contemplative, powerful. "OzairAI" as a faint studio stamp watermark in the bottom-right shadow area of the black background. Vertical 9:13 format. Ultra photorealistic, 8K, no text overlays, cinematic color grading.