Very nice game! The mechanics are cool and interesting and introduced in an understandable manner, and the art looks fantastic and is very cute.
I think it would be nice if there was an indicator on the dragon’s alertness bar so that it is clearer to the player how much each action may alert him. I also noticed that the amount that certain actions alert our dear dragon is different in certain levels, so an indicator on the bar would help make that feel less inconsistent.
I would love to see this game with sound and more levels. Would totally play more to see how the puzzle mechanics could be explored even further, and how the full story might go.