It's wild how much you were able to accomplish in a month! The fact that you managed to make this big a world and include four unique enemies is honestly kind of bonkers. I think this is probably the most ambitious effort in the jam.
My favourite thing about this game is a tiny detail -- it feels great to call your ants. The little trumpet area of effect, the instant response... it just feels good to do. And since it's one of the things you do over and over, it's really great that it works as well as it does.
As a tiny critique, it would have been nice to have the ants move a little closer to your walking speed? The game suffers a touch from the classic NPC-that-can't-match-your-run-speed syndrome. But I read your pathfinding comment down below, so it's hard to fault you for slowdowns from this since it wasn't your intended mechanic. My only other issue was a softlock on the queen fight, but I saw that as a bonus surprise anyway -- so no harm no foul.
All, in all, this is super impressive. Lots of nice little touches here that make the game come together and feel fun and engaging the whole way through. Great effort -- thanks for the fun. :)