The style of the game is really cute. I can definitely see the vision and it's a really nice start for the game. Angling  (fishing reference?) the camera slightly is a really nice touch to show off assets (THANKS KENNY), even if it creates a lot of issues with tower placement. The tower placement felt easy and consistent.

Adding a small wait or countdown before the pirates start invading might make it a bit easier to understand what's happening before there are so many enemies.

Excited to see what you do with more tower/enemy types and animations!