Ha Marc,
think any kind of beard will look good on James. It will add to his battle fatigued look he wears so well in the movie.
I like your idea of up lighting the skin by downtuning in washes too.
a sculptor that has spended a lot of time on how to depict James best in this intrinsic Steiner role with only clay as his instrument has to settle down in the believe that things not be able to sculpt should be painted.
it's my own opinion Marc, the position of the eyebrows reduce the eyelids for less of a half too. Which covers up the iris partly.
This allows to widen them a bit more and believe it or not, will give James a somewhat smaller face.
I say, lift the pupil slightly.
René