This is a really fun puzzler! I love the art style and music. They're simple, clean, and cute - they establish the feel of the game really well. I like how you used the theme here, all the pieces feel very interconnected. Sometimes you have to sacrifice points you could get now for points you could get later because of how all the tiles depend on each other. I think this game could launch almost as-is! Nice work!
If you do decide to launch, here's some features you've probably already thought of that I'd enjoy:
- a level system
- preview of what tiles are coming up next
- more tile types
- themes - I'd love to play an underwater themed level for example