Marshall BraveStarr rides his mechanical horse Thirty-Thirty through a rainbow-colored shimmering metallic canyon, two large alien moons rise in the midnight dramatic sky, galaxies in the background, stars and rings, sharp intricate details, masterpiece, imaginative, raytracing, octane render, studio lighting, professionally shot photo, hyperrealistic, ultra high quality, realism,wide-angle lens, vivid color ,sharp focus, HDR, UHD, 64K, cyberpunk | Sci-fi