<|user|>Provide a prompt for Stable Diffusion for a retrofuturistic portrait of a man in astronaut helmet<|end|><|bot|>retrofuturistic portrait of a man in astronaut helmet, space graphics art in background, close up, wlop, dan mumford, artgerm, liam brazier, peter mohrbacher, 8k, raw, featured in artstation, octane render, cinematic, elegant, intricate, 8k