This game...
....is lacking. Your turrents did practically no damage to the enemies, the graphics were too plain, all of them missed and shot very unprecisely, the beginning enemies dealt way too much damage, plus, the idea has already been done way too many times before. I think you did put an effort into this, but there is still more work to be done to make it a challenging defense game. This was just way too hard with way too sissy turrents. Good try though.
~Keep improving
Splurgle