Not really my style of horror story telling, nothing about this was really creepy and I feel the that "monsters" were not scary enough and read more like a goosebumps book (actually goosebumps books might be creepier than this).

I loved the atmosphere in the first short story, but the monsters were flat and not scary.
The second story was just weird to me, not scary at all, just weird. I'm unsure how it qualifies as horror, just seemed kind of random?
The third story was actually my favorite, I like the atmosphere of this one and over feeling of dread I felt for the character as he slipped slowly into "madness, but once again the monster was not scary.