In a captivating scene that echoes with the nostalgia of the 1970s retro-style posters, a photorealistic digital art piece features an astronaut gripping an American flag atop a rocky moon surface. This tableau is set against a breathtaking tapestry of space, where planets and stars stud a vibrant, green-tinged sky, all reflected with striking clarity in the surprising presence of water that surrounds the astronaut and rocks. The hyper-detailed, surreal collage beautifully marries elements of retrofuturism and vintage magazine aesthetics, using an Octane Render style to bring a fictional yet arresting vision to life. This striking fusion of elements makes for a quintessential visual guide, providing invaluable MidJourney style reference tips for beginners aiming to capture similarly surreal and imaginative vistas in their digital artwork.