This game is super cozy! I love the vibe! You did everything right with the artwork and don't get me started on the music! At first in the tutorial I was like "Oh, nice music" but then when the level started it EVOLVED?! No way! Very Epic!
I also liked the idea of upgrades being a "pick two good and one bad" situtation. Although I didn't get the enemy system at first, I still liked the idea a lot later on when I got it :D
My only problem is that the "skip turn" button didn't work. At first I was frustrated because I thought it is intended that I'm always forced to place a tile but then I realized that the "skip turn" button always turns on when there is nothing to do and gets disabled when there is something to do so I assume that this is a bug and not an intended feature?
So besides this frustrating bug I loved your game!