First of all good game, only thing I would add is a vol. slider in the menu to turn down the music. loved the problem solving aspect of the game, it gives a feel of a saw movie, I really hope a part 2 is on the way!
Your game looks beautiful, the environment is perfect! the story (beginning especially) really pulls the heart strings. only small thing I would tweak is make a option to make left click interact. Excited to see where the story goes from where it leaves off.