The lit frames look great. I feel like some of the colors, namely those of the papers, are too bright and kind of ruin the atmosphere. To make it look really creepy in pixels, you would probably need to subtract detail. The dithered edges look good, though.
the 1x version is kick ass. I think 2x max scale would be better for the main version.
my god, this looks so GOOD... almost too good...
Great!
If possible, more detail and less dark, a few reflexes... would make it even better.
If you ever want C&C before posting a final version, try the WIP (work in progress) section of the forum.