Rotoscoping in Snow White

In Disney's Snow White, the character of Snow White was rotoscoped to get the movements flowing perfects. This rotoscoping of a person shows how realistic the movements can be and how rotoscoping helps to get the proportions right within the Character. It demonstrates the act of taking a real life person to capture the proportions and movements, and then creating an entirely different character over the top of these basic movements. 
This will help me get the proportions right for my Mr Tumble character in my CBeebies ident.