I brought this up before, Joe Rinaldi's story work on Disney features is often mistaken for for Bill Peet's. Both artists show top draughtsmanship, excellent staging and great story continuity.
Here are a few sketches by Rinaldi for Cinderella and one for Peter Pan.
As an animator your work is half done when so much is already worked out by the story artist. Personality-rich poses, character relationships and acting. Story artists like Rinaldi really are unsung heroes, because they provided the ground work, the storytelling and character development.
In many cases the animators used these poses within their animated performances.
For Joe Rinaldi's work on Lady & the Tramp, go here:
http://andreasdeja.blogspot.com/2013/04/joe-rinaldi.html