cyberpunk, Johnny Silverhand, robotic arm, silver chrome finish, mechanical details, intricate design, prosthetic, futuristic, worn leather jacket, rockstar pose, standing, urban backdrop, neon lights, gritty alley, night scene, dynamic angle, dramatic lighting, high contrast, detailed textures, reflective surfaces, cybernetic enhancements, action stance, dystopian cityscape, 3/4 view, atmospheric mood, advanced technology, science fiction setting.