Prompt: An enchanting underwater fantasy illustration featuring a magical world teeming with life. Bioluminescent creatures illuminate the dark depths, casting an ethereal glow over everything they touch. Schools of iridescent fish dart through coral reefs, their scales shimmering like precious gems. Giant sea turtles glide gracefully past, their shells adorned with intricate patterns that seem to dance in the light. Even the seaweed sways gently, its fronds aglow with a soft luminescence. In the distance, a majestic mermaid lounges on a rock, her tail sparkling with every shade of the rainbow. This mystical realm is a true feast for the senses, inviting viewers to lose themselves in its beauty and wonder.