I really like the concept of your game. Simple and easy to pick up, but also fun. I didn't even know getting the health back from the heart till I specifically looked for it.
A little tough using a mouse, but got the hang of it eventually. Like someone else said, it would be a fun mobile game with different levels like faster shape movement. If you ever go back to this game, maybe a level where you get a '5th' shape and you need to put it in a 5th bin for example. Very groovy music too!