Envision a mystical underwater scene on Neptune's moon, Proteus, with glowing jellyfish-like creatures floating amidst the dark, icy waters, and a faint glow emanating from the moon's surface.

Design a futuristic cityscape on the moon of Triton, with towering structures made of iridescent ice and glowing blue lights, surrounded by a frozen landscape of cryovolcanoes and geysers.

Create an illustration of the planet Neptune, showcasing its icy blue atmosphere and swirling storm systems, with the rings of Saturn visible in the background, set against a dark blue and purple nebula.