One final parting thought for the evening: I do agree with previous posts commenting on the teeth.
Some of the teeth do appear to have suffered shrinkage during production. Particularly in the top half of the head. One of the things I REALLY don't want to see lost are the four canines that were not over-exaggerated, but noticeable in the McFarlane portrait.
Also, I'm uncertain if it's the lighting, but I also prefer the pallet of the prototype teeth. The production pieces appear to have a bit too much dark shading compared to the original.
If the jaw is being looked into, I would also suggest a review of the teeth, as well.
Again, many thanks for addressing this, XM!
-MTR