Create an imaginative underwater world where vibrant street art adorns the walls of ancient coral structures, depicting fantastical creatures and colorful designs that seem to come to life in the depths of the ocean.

Craft an image of a vivid underwater realm where lively street art decorates the stone-like surfaces of time-worn coral structures. The graffiti tells tales of mythical creatures and bursts with an array of hues that appear to be alive, pulsating in the ocean's profound depths. Various sea creatures, including curious fish of varying shapes and sizes, are attracted to these art-filled spots, forming a lively, bustling scene.