Wow! That was really clever! The art is proficient and charming. The mechanics are intuitive and a lot of fun to use. The gothic soundtrack fits the atmosphere perfectly. Good job on the sound cancelling; it sounds great!
The door opening sound is a little loud. It's also possible for the ghost death sounds to stack on each other and become quite loud (I found this out on level 2-3).
The portrait changing in the light is such a good detail!
The crouch-down look is much appreciated.
Fantastic! Great work!