A techno-magical shaman in shamanistic robes performs a ritual to resurrect a biomechanical horse in a huge steel ancient ruins covered of dunes of sand. Art by Finnian MacManus, Rembrandt. Masterpiece, fantasy art, future, cinematic, hyperdetailed, sigils, photorealistic, cyberpunk, postapocalyptic, steampunk, hyperrealism, octane rendering, 8k, depth of field, bokeh, shadows.