This is really great submission! I think game has some good potential, you got some good sense how to make games.
Game is engaging with that upgrade loop and different characters, just pretty great design. I am rather RTS fun than turn base game but here I got really nice experience that changed my mind :D
UI is something that is well made, pretty clear and readable. It was pretty clear what to do. Cool!
Art feels maybe not that cohesive but I got idea it was base on partly on assets pack, but music did well job to make this "flow state" vibe.
Very well done, and congratulations on your first submission! Waiting for more!