I haven't had the chance to see any of Bill Peet's life drawing (from a nude model), but Milt Kahl told me way back that "they knock your socks off." Milt was a huge fan of Peet and his storyboard work for Disney. As were all of the animators.
Heritage Auctions offered this concept piece for the cover of his 1989 autobiography a while back. The final version for the book removes the artist from the composition. What an outstanding storyteller, at Disney as well as in his "Childrens' Books". (They can be enjoyed by adults as well.)
Peet started to illustrate books in 1959, while still working at the studio. His first book was "Hubert's Hair-Raising-Adventure".
Here is the Wikipedia link to Peet's life and work:
I am just so thrilled to have met him, and I recall our lively conversation during the reception of my wire sculptures exhibit at Disney in 1989: