This ugly critter was one of the monsters in the now sadly discontinued skirmish game Chainmail.
It needed quite a bit of green stuff to fill the gaps between the body halves.
Skin - Vallejo Game Color 35 Dead Flesh, washed with Citadel Baal red and finally drybrushed with Citadel Rotting Flesh.
Mouth - Citadel Scab Red
Claws and teeth - Vallejo Game Color Bone White with a wash of Devlan Mud.