Hi! Pretty great game overall, really impressed by the general aesthetic of the game. For improvements, I feel like a bulldozer feature where you can remove any of the structures you have placed would work much better then an undo button, since it can be frustrating when you have to reset the entire level because a structure you placed early on is in the wrong position.
Also, the blurring around the edges of the world looks great, but maybe tone it down a bit.
Overall though, it's a fun and unique take on the city builder genre, I look forwards to seeing what you come up with next!