Mystic character from movie The Dark Crystal

I've started a new large project and have new images to show. I'm going to be recreating several characters and environments from the movie "The Dark Crystal". This movie has had a huge impact on my life and Brian Froud, the illustrator behind the look of the film, is a true master. So, the first character I'm doing is one of the "good" characters in the film called uR ru or Mystic. I'm doing base modeling in Maya and detail work in Zbrush. Below are images from the my WIP of the head. There will be TONS more to come on this project as things progress. Any comments welcome.