The building was self contained enough and was pretty freaky and well done. Though towards the end, there was only one path to go towards which branched off to different endings which I think felt off from the whole feel of the game, but it was still pretty cool and spooky!
Also maybe a suggestion for the future for this series would be to visually show the deaths and horrors that happened in this place; like the hanging woman, the falling barrel, etc. That has more impact than some newspaper articles strewn about the place telling more or less the same story about the place. (I still think that the stories were interesting and the implications it had were open ended and left towards interpretations pretty well!)
Though I do have to say that the sounds were fantastic; they seemed 'soft' in a way and that sold it and made it seem that much more realistic and can make players feel like they are really in the situation, so really well done on the sounds!
It was a fun game and very well done! Good luck for future projects!