A photorealistic digital painting of a sleek futuristic helmet with intricate glowing neon-blue circuitry patterns etched into polished metallic silver armor, a translucent holographic visor reflecting a sprawling cyberpunk cityscape of towering skyscrapers illuminated by neon-purple and cyan lights, dynamic angular design inspired by Tron Legacy and H.R. Giger's biomechanical aesthetics, rendered in Unreal Engine 5 with Octane Render for hyperrealism, 16K resolution, subsurface scattering on the visor, ultra-sharp PBR textures, cinematic volumetric fog, chiaroscuro lighting with dramatic contrast, HDR 10-bit color grading, anti-aliasing, and symmetrical composition for poster or in-game asset use.