Wow, really amazing graphics and music! Great mood. The puzzles were rather simple but nice. The gameplay was really polished, so overall it looked like a really solid game done in significantly more than 2 days.
If I were to add anything it would be an ability to restart when you mess something up (even though it's pretty hard given simple levels) and checkpoints in case you accidentally fall into the water.
But overall, really impressive and amazing job! Enjoyed the game!