WOW! What an entry! I had so much fun playing this and I hope you will make more! I would give my feedback but I can see that someone has already made every point I wanted to make, namely:
Ability to switch between characters in combat
Max movement distance indicator
Ability to move around camera to scan the arena
Additionaly, I would mention you should add damage numbers, and health bars or a stat sheet when hovering over an enemy. And lastly, MORE CONTENT! I want to play more of whatever you have in store! the art is beautiful, the fact that you do almost every interaction with the crank on the right and the sounds are nice and crunchy.