Finally, I feel that I'm on the home run with this portrait. There's still work to do but, at least I'm building up depth, now. This is the fun stage - increasing the depth further and applying the myriad of colours which are present in skin tones. The end is in sight with the face and the hair should be relatively quick, in comparison. Then, the clothes and final arm to render. I tend to have a running list, in my mind, which helps me to keep pace and find direction in my work.
So, more reds, some deep browns, for contrast, and some pink/purples for delicacy - maybe, even, some yellows for more glow - then, the end will be in sight! It's been a long haul with this picture, much longer than usual, so I'm looking forward to finishing this project.