OK, I think I understood what was wrong about the pelvis. I was adding too much anti aliasing there, what with the triple line of the pelvace. I thought the triple line defined better, but, now I understand that the anti aliasing made the definition of the pelvis worse. In this edit, I also added more dramatic highlights similar to the ones in your edit, but asymmetrical for extra effect. I especially like your head highlight, I wonder how I never thought about that before. I did not change the face as per your edit because I think it changes the expression in a way I dislike. It may seem like too much anti aliasing, but it really helps in defining the face from the rest of the head, I think. I also didn't adopt your edit of the beasts completely because I think it makes them look too square.
As an aside, the image should be seen in a +- 2x magnification as that how it will be seen on the game screen (640x480 resolution).
I also made the contrasts of my color ramp somewhat stronger, and you can see in the grayscale that the contrasts are now better. But I did not change the hue, as I like this "piggy" color, and IMO, the other skin color looks too reddish to me. Maybe it's because I (think I) have some funny kind of color blindness where dark colors don't register. Maybe I'll just let the player set their character's palette the way they like it. :p
Edit: I just did some online tests and finally I found out that I have "Deuteranomaly" (nothing any doctor ever could tell me), that is, I can see all colors, but green less intensely so. That means that the skin colors you propose will look more red to me, because I don't see the green in them as intensely. That's also why I add more green (towards yellow) to make a skin hue.