Well, consider me sold on AO. With a small enough depth and the red tint I suggested, the navel, lips, nostrils, eyes and ears have definitely improved here (before on the left, after on the right). Some strange artifacts, though, that I'm sure you've already solved. I won't bother, seeing as I don't plan to do many Poser renders in the immediate future.

-- I'm not mad at you, just Westphalian.