A beautiful highly detailed digital artwork of a (Dark castle on the edge of a high mountain under red sky with a river running red water), 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