Thanks for the comments everyone.

@steders I'll try to make some WIP:s in the future... I am not very good at sculpting so I use a lot of parts from plastic kits and leftovers from other minis as well.
This is the original model for the female thing. Harwood Hobbies LC05 - Re-Animated Horror

First I carved away all the stitches. The mouth was added with greenstuff like a rim over the torso.
The teeth were cut-off teeth and spines from leftover chaos hounds used for the dog things, I just inserted them into the greenstuff rim and arranged them with a sculpting tool as I wanted it to look. The tendrils are greenstuff rollled into shape and then put together and left to set before trimming the base and gluing it into the mouth, for this one, after basecoats were applied. I also added a left arm cut from a GW corpsecart corpse left hanging by bits of greenstuff. To the right arm I added a row of teeth from a chaos hound and some greenstuff to cover the bandages the model had there, I left it a bit lumpy to simulate the mutating flesh of the thing.
Here are a few WIP things just after transformation after being discovered.
Parts for the first one GW imperial Guard, ghoul left arm, dryad right arm, tentacle arm for neck and maxmini head.


Here is a GW undead head and torso, dryad arms and mantic ghoul legs for some crouching menace, rising from the floor after being left for dead or something.

@Mason The arcade machines are from blackcat bases, pimped with some homemade transfers.