Avatar & Wallpaper: Astronauten-Visier

Photorealistic avatar portrait of an astronaut wearing a glossy white space helmet, the gold-tinted visor reflecting a breathtaking starfield with a swirling purple nebula and a tiny spiral galaxy, faint reflection of Earth's blue curve at the visor's edge, micro scratches and faint gold fingerprint smudges on the visor surface, a small lit indicator light at the visor rim, the helmet's white shell with subtle scuff marks and riveted ring details, cool metallic sheen across the helmet dome, thin blue LED strips on the spacesuit collar, collar of a white and orange spacesuit, mysterious anonymous mood, deep black space background with scattered stars, cold blue moonlight-like lighting from the left with warm reflections on the visor rim, blue-purple-gold palette, head-and-shoulders close-up, straight-on angle, extreme reflective detail with crisp visor clarity, cinematic sci-fi, 4k