Hi, interesting concept here!
I like minimalist graphics, and the dynamic lighting really helps sell the look. I think maybe some Post Processing could have taken it to a next level.
The gameplay is solid, but I sometimes felt frustrated by getting shot by turrets that haven't yet appeared on the screen.
For me, the game is at its best when dealing with multiple waves of projectiles and having to be strategic about my mouse placement.
If I could tweak one thing about the game, I would make it restart instantly on death. Personally, I get pretty frustrated by long game over screens when I'm eager to try again.
Good job!