Here are two wonderful sculpting demos by Phillippe Faraut. Philippe constructs his sculptures in a very anatomical manner, progressing from the inside out, using large geometric shapes. I find this additive process makes it particularly apropos to a visual artist, as it gives a deeper understanding of the underlying forms of the figure.
[youtube https://www.youtube.com/watch?v=R1tH03sOhkU]
[youtube https://www.youtube.com/watch?v=c1W2_DyN7ck]
What a great way to learn anatomy! Thanks for sharing.
I use clay models for reference purposes. It might sound like a lot of work, but even a rough shape, gives you tons of use full infomation of light and shadow.