A beautiful highly detailed digital artwork of a (black rectangular monolith fantasy dungeon), in the style of space nebula, with the colors of galaxies, featured on Artstation, octane render, 4k, 8k, artstationhq, intense, epic, exciting, wow, panoramic, cinematic, moody, hdri, lens flare, exciting, stop motion, highly detailed, octane render, soft lighting, celestial | Space