This was a lot of fun! I definitely spent a good chunk of time playing. I actually have it running in another tab as I'm writing this! Hoping to snag the high score.
I loved the animal sprites!
One issue I had was that a couple enemies would always show up just before dawn and there wouldn't be enough time for them to be destroyed. So they would run freely in the daytime and make it all the way to the Great Tree, despite the immense array of defenses I had in place.