Prompt: Create a cute mermaid sitting on a rock in a sparkling underwater scene. The mermaid should have long, flowing pastel-colored hair, big expressive eyes, and a friendly smile. She can have a shimmering tail with scales in shades of pink and turquoise. Place colorful coral reefs in the background, surrounded by playful fish and seashells. Add some bubbles to create a magical atmosphere. The overall mood should be cheerful and enchanting.