Not really a lot of fun, you just fight wave after wave. I'm not sure how I am dying. I don't think the UI works and the game just keeps going after you die.
You have some polish but the audio makes me feel like I am listening to popcorn popping then blowing up bad guys.
The art on the main character looks cool but she just doesn't feel like she belongs in the worlds.
For the future, I would say don't sacrifice functionality over anything else, that should be priority number 1. Secondly, don't just make it a shooter where you point and click, that's just too boring. Add something that makes it stand out. Finally, keep the art consistent. You have a well drawn out character but everything else, the background and 3D bats feel rushed. Also add an attack cursor because I can't see the mouse among the projectiles.