"Create a simple 2D cartoon of an underwater ocean scene featuring fish and other marine animals. Include colorful fish with cheerful expressions, swimming amidst coral reefs and sea plants. Add other sea creatures like a playful dolphin, a curious turtle, a friendly octopus, and a few starfish scattered on the ocean floor. The background should be a bright, clear blue ocean with bubbles and gentle waves, creating a lively and enchanting underwater world."