Here is a concept piece by Greg Baldwin that I recreated in Zbrush
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Wow, very cool recreation in ZBrush…excellent skill here… 
That is a great job!
I like the coloring as well.
IMHO I think you took the cheeck ‘hard edge’ too far. It now looks like a mask on top instead of a different level of the same skin. Maybe a bit less harsh.
I really do enjoy it though.
I hear yea man, I plan on redoing the collar piece and smoothing the cheeks just a touch and fix the color of the lenes. I need to also tweek the sss shader to make him look a little more healthier. I’ll post some changes as soon as I can 