Great game! I would really like to see a longer version made available. The art was fantastic, and the horror elements kept the game engaging.
As for criticism, I would definitely have liked more music. Most of the puzzles were good, except for one that I talk about in a spoiler below.
I'm not sure if I like the keyboard puzzle in the first room because it felt like an instance of a single key being used to solve two puzzles (in this case, the keyboard is the conceptual "key" and was used twice to solve two puzzles; the keyboard pattern puzzle and then the 3-digit code puzzle).