Hey, don't worry about art so much. It's so subjective that I'm sure someone else will absolutely love it. Focus more on the mechanics and building upon that and you will build something special. Good idea on the trees! As far as the instructions, maybe contextual hints in game would help, just to give some feedback and direction without laying it all out, you know?
Viewing post in Zombie Town jam comments
I was trying to make like a "squish" effect when you select your town so you know you've selected it but it just didn't look correct and then I was trying "depth stencils" but then that didn't work either for some reason so I skipped the idea and I'll add to my "final" product once I'm happy with where it sits.