Make a Stable Diffusion prompt that generates an image of portrait art of  ultra realistic retro futuristic astronaut
portrait art of 8k ultra realistic retro futuristic astronaut, helmet visor open, glow around helmet, deep space , detailed intricate ornate armour,blade runner, cybernetic, full of colour, cinematic lighting, trending on artstation, 4k, hyperrealistic, focused, extreme details,unreal engine 5, cinematic, masterpiece, art by ayami kojima, giger