I'm not sure about needing more highlights, but adding in some deeper shading would most certainly help to acheive the look your after IMO.
Great work though Kev, those pants rock!
Thanks Keith. Whiz and I discussed the skin. The last one of these I did was with less shadow and less highlight. We figured I was still fallin' short. You're absolutely right on the "skin problem". I think I'm gonna take the highlight up a notch or two with some bone/ivory, and maybe take the shade down at least one more notch.