If they're a medicine man, why don't they wear clothes? I can think of several medicines and diseases that could cause significant harm to the body if come into direct contact to skin. Yet outside of what looks like a single scar on their jaw, their skin seems as flawless as that of a newborn babes.
I love how so much of your creatures are ambiguously mammalian or human-like. I think it would be really cool to see your take on a dragon using that design philosophy. A big dragon-shaped critter but naked and very mammalian, maybe it was once a human, who can say!