A feeling for draftsmanship, emphasizing good drawing, and all the marvelous character development... insight into what made a character live on screen.
He is remembered for having worked rough and loose, in animation terms, with a focus on feeling, action, and the character's personality rather than detail, structure, or formal draftsmanship.
Except for his characteristically brilliant draftsmanship and obsession with the figure, the pictures created in this late period of his life bear little superficial resemblance to his early paintings.