Hey!
First of all, great game! Congrats on making everything on your own! I really love the art, is very cute and I thin the main gameplay is really straight forward and fun. I love the fact that the difficulty increases over time, nice touch!
If you are looking for some feedback, here's mine: I think some music and sound effects would be great, even if they are simple. Having them will take the game to the next level! Also, some more work on the theme would have been great but other than that, really solid game!
Congrats again, you did very well!
I would love to have you playing mine too, if you don't mind of course! ^_^