Very well executed theme idea. Initially I had a similar idea too, but you applied it very well. Both the graphics and the sounds are very well fitting into the game. I enjoyed a lot playing it, you put a nice variety of levels and different building blocks. Great job.

Aesthetically, I feel like the game sticks really well to it's minimalist style. My gripe is with the tutorial, which doesn't tell you you can place things on the track. Also I would've liked to know how many pieces are left, but that seems like just a bug on the web version. I also like the choice to put it on a hidden grid a lot so the puzzle side of things stays consistent. I didn't get level names in the web build either, so I suspect it's a text problem, which is weird because some text worked. Cool Game!