PROMPT:
A bustling underwater metropolis filled with eccentric sea creatures, where a giant octopus named Ollie is riding a unicycle on a tightrope suspended high above the central square, surrounded by shimmering jellyfish lamps, schools of iridescent fish darting past, and coral architecture that shines like polished gemstones, all set against a radiant turquoise background, with vibrant colors that pop, especially blues, greens, and yellows, to create a whimsical and fantastical atmosphere, minimizing pink hues and emphasizing photorealistic textures and reflections.