Futuristic, sci-fi cityscape, neon lights reflecting off sleek skyscrapers, holographic advertisements floating in mid-air, robots and flying cars zooming by, a lone astronaut standing at the edge of a towering futuristic skyscraper, futuristic helmet with golden visor, white and silver space suit, intricate mechanical details, metallic texture, distant stars and planets visible through the atmospheric haze, cinematic composition, 3/4 view, low-angle shot, dramatic lighting.