 a man holding a gun, a robot, Weta Studio, James Jean, Yoji Shinkawa, Geof Darrow, best quality, 4k, 8k, highres, masterpiece:1.2, ultra-detailed, realistic, photorealistic, photo-realistic:1.37, HDR, UHD, studio lighting, ultra-fine painting, sharp focus, physically-based rendering, extreme detail description, professional, vivid colors, bokeh, portraits, concept art 