The art styles and sounds were nice, I do like the idea of using your health as a means of damaging the enemies. The main thing I'd note is there should be feedback on damaging the enemies, and also the enemies don't fight back, you can sit in the center of the mass and the worst-case scenario is they push you off the map, so definitely would be interesting for them to try hurting you back after you slaughter like a quarter of their people.
It's a good submission but there are a few things your game could benefit from having to make it better, but still be proud you got out a submission and put the time and effort into making this submission, the best way to better ourselves as game devs, is to push forward and build, listen to opinions of others, now you don't have to heed all comments, but finding value in some can take you a long way.
I wish you the best in any future projects or jams.