Casual male engineer, 25-30yo, messy brown hair, black-framed glasses, facial stubble, white T-shirt with colorful graphics, blue jeans, black sneakers, relaxed posture, leaning against a laboratory counter, surrounded by tools and machinery, LED lights, wires, circuit boards, robotic arms, futuristic lab equipment, metallic textures, subtle shadows, soft focus, warm lighting, 3/4 composition, shallow depth of field.