Add to sdvl's: 1) Articulated feet for the animators 2) More realistic parenting practices (sandals being controlled by the front of the foot, not the heel) in general. 3) -At least- one more lumbar region joint for more accurate flexion of the torso (you could probably have a couple thoracic joints with limits on as well). 4) A bit more anatomy (create the nasal passages high enough to not have to worry about glowing nostrils, more of the mouth-throat structure, again for those close ups, an actual ear canal).