Great job on the game you all made! In it's current state, the game is lots of fun and I know it will be even better as you all continue to polish it.
The gameplay loop is enjoyable, providing lots of variety with new party members and upgrades and introducing different enemies into the game as I progressed through the game. The art is fantastic and I know with added animations, it will feel so good.
One possible improvement could be to enable player to drag and drop the characters without having to press the movement button - it feels more natural. Or instead of pressing the movement button, pressing the character also shows the movement options. Anything to make the player interactions have less friction will make the gameplay feel smoother and polished.
Overall, amazing work!