A beautiful rough animation drawing by Ollie Johnston. It looks to me that this scene was based on live action footage. Many scenes with the stepsisters in Cinderella
were handled in a cartoony way, something Ollie regretted later on. He thought he might have gone too far occasionally portraying them as broad animation personalities. And...I probably agree.
There is a drastic difference between the realism of the Stepmother and Cinderella versus the broad animation of the Stepsisters.
But the two sisters represent much needed comic relief within the story, and they do perform as such beautifully.
remains one of Disney's best storytelling. I do love this movie.