I love the concept and implementation of the theme , the two main problems I have with the game is the lack of sfx/music and the gameplay loop. After a while it just turns into clicking on buildings , waiting for the ball to get there , waiting for a new building to appear and then clicking on that. I would have loved some extra challenge.
TLDR : Loved the concept and implementation but would love to see some sfx/music and it bit more challenge.