Such a great game! I really liked the concept in the game and it was different to other tower defense games I've played. The art style was very nice and I loved all the characters you've created. Overall a very fun and enjoyable game, keep up the good work :D
I don't know if you've heard of Game Development World Championship before (gdwc2019) but it's a competition for indie game developers where they can submit their games and it's free! It's great if you want some more visibility for the game and it only takes a couple of minutes to join :)