I think a Random Walk SSS would do better for human skin. It’s noticeable on the ear, the thin part should be a lot more translucent that the thicker parts. The ear also looks like you sculpted it from memory. The shape doesn’t completely make sense. And it shouldn’t have such pronounced pits. Earlobes are pretty smooth. I would also do away with the chromatic abberation, or atleast halve the strength. Also on the er image- the skin on the jaw looks a bit odd. Like the normal map isn’t working correctly.
Overall great impression! Good luck with the chase of perfection 
I’ll leave this here