illuststyle, a high-end semi-realistic anime style illustration of an iridescent bio-mechanical glass jellyfish floating through a deep subterranean crystal cavern. The jellyfish body has a translucent, highly glossy and metallic chitin shell that shimmers with a polished oil-slick reflection. Deep chiaroscuro shadows wrap around the surrounding dark cavern walls, while a striking neon-purple rim-light defines the intricate edges of its long, glowing tendrils. Small, glowing electric-green spores drift through the air, creating sharp, microscopic highlights on the glossy surfaces.