majestic blue jellyfish illuminated in dark ocean waters, surreal maritime scene

creature sci marine biology ocean glowing underwater predator fantasy wallpaper jellyfish water photogenic surreal hydrozoan float tentacles environment oceanic plankton neptune 039 net cold blue gelatinous pelagic nature wildlife cnidarian backdrop illuminated oceanography invertebrate serene bubble abyss maritime nocturnal deep sea aquatic medusa scuba life mysterious mystery cnidaria majestic dark nautical waters scene generative