Cool concept. There's some really nice puzzles there. I wonder if there's an additional mechanic you could add to it to twist expectations a little bit and renew the interest in the puzzles. I only got to level 7 before I had to move on.
Actually after level 7 there is a twist in the game. No new things are introduced, but a new aspect is shown which then is used for the last 4 levels. So I recomend that you try to get passed level 7.
