Great game! I really enjoyed the music and art style. The levels got more challenging and for some I struggled the most with level 8. Overall a very fun game, keep up the good work :D
I don't know if you've heard of Game Development World Championship before (gdwc2019) but it's a competition for indie game developers where they can submit their games and it's free! It's great if you want some more visibility for the game and it only takes a couple of minutes to join :)