You have got a lot of solid feedback already and it seems you plan to maybe update the game after the jam ends, I think that would be a good call because it seems you've put together a really good foundation here (although a bit buggy/unfinished due to time constraints, as you mentioned). I do think with proper time and TLC this could be really cool.
I also wanted to say, the art is really good, and your implementation of the various menus is impressive too, I do imagine that took quite a lot of effort for something that kinda flies under the radar of most players as it seems like a "given" for a game in the genre
This is a cool little game overall, congrats on your first jam submission!