Really good visuals, they are so charming. But i couldnt play anything on the zombie section because it freezes when the zombie collides with your building, so would not comment on that.
On the bulding section is not visually clear what is your current selection to place, and there is no feedback to where are your going to place your current selection. The fact that a i have to use just my mouse on a building style game is frustrating, hotkeys for selecting and rotating can fix that feeling. I really couldnt understood how am i supposed to make my building, a tooltip for every component would be very helpful.
Overall, the presentation is great.