This is a fun tower defense and I like your enemy models! the sounds effects are pretty satisfying as well. I think some more balancing would help with incentive to use the banks to keep up with the enemy spawns. I initially placed a few banks and got absolutely wrecked by the waves; but then placed only one at the beginning and won pretty easily by just placing towers as often as I could. Also I think locking the camera to the play area so you cant pan out into the empty map would help it feel more polished. great work overall!