I am a sucker for 3d puzzling game and this was promising! Really like the idea of having a notebook to write down solutions and maybe draw something M-rated on (not that I would ever do that of course). Sadly I got stuck on the key puzzle and I even tried clicking on the lock but nothing happened, I dont know if I did something wrong or if it's not working so let me know and I might try it again if I have time :)
The first two levels were great though so good job!