写实风格工业风专业汽修技师专注维修汽车引擎场景人像

realistic photo, gray, blue, and green color scheme, adult male, focused expression, repairing car engine, black short-sleeve shirt, green work pants, blue gloves, car with open hood, engine and parts visible, indoor workshop, tools and equipment in background, clean and professional environment, yellow safety helmet hanging, 'L' sign on wall, minimalistic design, professional and practical atmosphere