PROMPT:
Create a photorealistic comic-style cartoon image of a fantastical underwater metropolis, teeming with marine life, where iridescent fish and merfolk coexist in harmony, surrounded by majestic coral reefs, glittering treasures, and ancient ruins, set against a vibrant turquoise background with radiant sunlight filtering through the crystal-clear waters, using a kaleidoscope of colors excluding pink, with bold lines, intricate details, and a touch of whimsy and magic.