"Create a realistic 3D model of an astronaut in a detailed modern space suit, standing on the Moon. The suit should feature NASA patches, metallic helmet components, and a gold-tinted visor. Add visible fabric folds, scratches, and dust for authenticity. The oxygen pack should have intricate details. The Moon's landscape should include rocks and craters, with Earth visible in the distance. Apply realistic lighting with harsh shadows and bright highlights. Optimize for games with PBR textures."