The mechanic is clever and the game is fun when you get into the groove.
I wasn't too sure what the goal was in the 2nd level, I failed several times trying to get to the building on the right before I found what I think was a hole to take me to the next level. I also spent a lot of time trying to walk over the paper and several items thinking I would need to collect them.
I would perhaps reduce the contrast/prominence of some of the decorative elements and increase the visibility of the more important gameplay elements. I always find this GMTK lecture to be really helpful for this topic.