This was fun! My main suggestion would be to give each level an amount of moves to aim for (just like what you did for the last level). This way, it gives the number of moves a reason for being in the game instead of just on the last level, and it creates more tension. Also, this is a very minor suggestion, but you could add the screenshots on your game's page too. This way, others will know that there are more detailed instructions in-game. Other than these things, great job!