I think the concept of the game was interesting but personally I didn't enjoy it so much. Because small turrets cant attack the largest enemies and big turrets can't attack the smallest, I found myself keeping medium turrets and scaling any enemies to medium size.
Scaling turret to a larger size is annoying sometimes because there is often not enough room to do so. It could be nice to have a feature where if the turret has no room to expand then it will change it's placement to make room (if possible).
Also I really don't like the part where the camera zoom out because the first time I got there the enemies blitzed me before I had time to place down turrets there. If there was more time to react and potentially some marker to tell you what path the enemies are coming from for any wave I think it would have been great.
I really enjoyed the overall vibes of the game art and music though!