Alright, I finished the game. Or partly, I don't think I managed to figure out all the secrets out. :o
I like the use of black and white, and the intro cutscene was pretty cool. :) The puzzles were pretty clever too.
I noticed one bug. If you choose not to read the diary on the bookshelf, it doesn't remove the picture.
Anyways, it was a neat experience, even if I feel like I probably missed some stuff. :)