When I began this, instead of darkening the shadows, I made the color deeper, more rich flesh color, in the shadows and more transparent, less strong,in the brights. As I sculpt with yellow ochre and white, this makes the shadows look deeper and darker. Then, after buffing, I mixed a flesh tone with a cool color like a gray/blue and then gel so it is transparent. I paint this over all the shadow areas, buff again and then sculpt with the yellowed white. I tried this because I have never liked the x-ray effect of the darker shadows when photographed. This is looking much more like my actual painting when I see the phots on my iPad. I am thinking the skin needs more yellow. But , I will think about it before I proceed.