Here's my concept art on Krampus. Seems more like extreme quick and dirty sketches. As usual, wish I had more time!
I remember they wanted all these specific things going on (huge ass horns, layers of old Santa clothes with rips and patches, skinned face masking real face, holding a teddy bear, tats, chains, tail, hooves, carrying sack, in this pose, hump protruding out top, breathing steam, etc). It might as well have been a diagram.