cyberpunk theme, Johnny Silverhand character, futuristic prosthetic arm, leather jacket, dog tags, sunglasses, rockstar pose, standing in neon-lit alley, high-tech cityscape, holographic advertisements, night time, dynamic angle, vibrant neon lights, reflective wet ground, cybernetic enhancements, detailed tattoo, muscular build, gritty texture, smoky atmosphere, ambient occlusion, 3/4 view, action-packed stance, cybernetic implants, glowing circuit patterns, dystopian environment, moody lighting, dramatic shadows.