I do a lot of Poser promos, but I wasn't happy with the default shape of the Daz V4 body and I felt I wasn't learning anatomy. So I took a character by Laura Haskell that I liked (Ananke), and used the head for drawing reference, and then looked for photos of actual people to use for drawing reference for the body. I had a lot of trouble getting the legs and feet posed the way I wanted..a few of the "in between" drawings are here:
I think the hands are still a little weak, but I liked her head. I have a lot to learn about how skin looks in light and how the highlights fall!