Generate Warm Gray Studio Portraits

Create a photorealistic professional portrait image: Aspect ratio: 4:5 vertical. Scene: minimal photography studio with a warm gray seamless backdrop and a simple black posing stool. Subject: the person wearing a refined dark green blazer with a white crew-neck shirt, clean professional styling. Action and gaze: seated upright, calm confident expression, face toward camera. Composition: close-up to medium close-up, shoulders visible, eye-level framing. Lighting: large softbox key light from front-left, subtle shadow on the backdrop, realistic skin texture. Details: blazer weave, soft fabric folds, visible pores, natural catchlights, no plastic retouching. Text: no in-image text. Constraints: no watermark, no extra text, no logos, realistic anatomy, natural hands, no heavy retouching.