Businessman Professional Portrait

Generate "Businessman Professional Headshot" photorealistic prompt: professional portrait of a middle-aged businessman, grey suit with tie, short neat hairstyle, confident expression, dark grey studio backdrop, dramatic key lighting, corporate headshot, high detail skin texture, 50mm prime lens 要求：① 英文提示词；② 中文要点：西装颜色与背景对比、眼神光、下巴角度（微抬显自信）。