I think you have made a great first game! I had to try a couple of times to understand all of the mechanics, for example I didn't get that I died from the exploding shapes after a couple of tries. Luckily you have designed the game so the player quickly could retry, which made the experience super smooth. I really enjoyed the audio design and soundtrack as well, it was super groovy! I managed to reach a score of 12 before it got way to difficult for me, but I could definitely see this core concept as a mobile game. Well done!
If you have time, we would also greatly appreciate some feedback on our game Potion Panic. We have spend a lot of time trying to really polish the game, way more than usually, and are super curious to hear feedback from other players than ourselves.
Have a great day, and keep jamming! :-)