If you want to, you can write what should I improve for later game making because this was my first ever game and I want to learn from public opinion ;
It wasn't clear how to play from The UI at the tutorial, espacially the part with the mouse and switching characters and presenting the mechanics.
The art could have been a bit more detailed (maybe give the shapes faces or some personality)
Sounds would make the game feel more responsive and give the player more feedback.
I hope its enough, Other than that this is great for first time! My first game jam was the worst XD