Such a great, simple concept with a lot of scope for satisfying puzzles. I love the music and graphics, and how the music shifts when going from stage to stage within a level.

There was a brief moment in level 10 where it wasn't immediately clear how tall a stack of blocks was. Maybe allow the player a small amount of control in the camera to mitigate this?

Would definitely love to see more content, and would pay for a 'full game' with this mechanic explored more.