Create an image of a mermaid swimming alongside a school of vibrant, iridescent fish in an underwater world painted with swirling colors and patterns, where the ocean floor is alive with glowing coral reefs and mysterious sea creatures.

Visualize a mermaid with luminous scales, swimming gracefully alongside a school of brightly hued, shimmering fish. This takes place in an expansive underwater world painted with swirling, kaleidoscopic colors and intricate patterns. The ocean floor, bathed in mystical light, thrives with vibrant coral reefs that glow with unearthly beauty. Curious and mysterious sea creatures of all sizes and shapes inhabit this enchanting seascape, each contributing to the overall wonder and splendor of this sub-aqua paradise.