Even though you posted this a while ago, I enjoyed some of them especially that evil deer... Lol is that Carl's mom? jk jk... I have seen your other stuff from Picture Post, and this is about the same. Sometimes they feel too softly painted. If your edges were sharper it might make them seem scarier, you know what I mean? Also your colors do not have enough value between them, read
THIS it may help you to understand.
THIS might also help...
They are all indeed scary, but when I see some of them it feels like their anatomical structure just wouldn't work, and that takes away from the amount of terror they could cause me. The eel, Teal demon, Worm monster, Gremlins, and Insane-o deer are all very well done and convincing, but I feel like the rest are lacking structurally, taking away from their wow factor. The best out of all of them is the Deer. It is very convincing and I can tell you spent time on the skin details and perhaps looked up Deer references. The worst may be the pink skin monster. It's legs are very stumpy, so stumpy it wouldn't be able to run since it has no knees. Right now all it can do is waddle like a ducky. It has 3 legs? 4 legs? I didn't even realize it had 3 legs in the picture until I looked more closely. These legs are similar to elephants though, you could reference those and the monster would seem more convincing.
Overall they are very good!
3nodding 
