This is a game that is really good! Some level names don't make sense to be honest, but it's a puzzle, and it's not like you're gonna make all the tiles brown on the chocolate level. It is fun, but it gets kind of boring after a while. The buttons on the top of the canvas are all paint-style and it's not very clear what each on is, so maybe you could add a controls section in-game.
By the way, you get a 4/5 from me.