I have now updated the DEMON: Heads blendshapes on all stores, and all 4 parts are available as a complete bundle on Artstation for 30% off. This update is free, and adds 176 new blendshapes to heads - skinny, muscly and obese for most. I also made two new heads to go with it. Here is a super dirty and quick animation I made with Zremeshing, Zbrush one click UVs' baking normal, AO and curve maps in Marmoset, and applying them in Maya to render with Redshift. I made a ridiculously crap ad-hoc rig with bad skinning, cause I just wanted to really animate one of these guys quickly.
Heads https://www.artstation.com/marketplace/p/xABRx/demon-part-1-52-heads-with-blendshapes?utm_source=artstation&utm_medium=referral&utm_campaign=homepage&utm_term=marketplace
Bundle https://www.artstation.com/bvdhorst/store?tab=bundles