Lighting Effect - xl/pony

Generate a portrait of a middle-aged man in a studio setting. He is wearing a classic, tailored suit and has a calm, thoughtful expression. Use a three-point lighting setup (key light, fill light, and back light) to create soft shadows and highlights. The key light should be positioned to the side, casting a gentle shadow on one cheek. The fill light should soften the shadows, and the back light should create a subtle rim light around his hair and shoulders. The background should be a neutral, gradient gray to keep the focus on the subject.