I couldn't reply to your reply of my comment for you game so I'll see if I can do it here:
For one the ui is quite scattered. To me it felt quite suffocating.
UI icons for the towers were... well you can see it in the screenshot. I thought I was receiving a gun of some sort when I first entered the game.
This was just a mockup but as you can see, if I move 3 elements the ui suddenly becomes quite bottom centric with the main score at the top. It becomes a lot more balanced.
Of course this is all an opinion of some random dev on the internet so take it with a grain of salt