These Disney concept artworks depict just how different the characters could have been perceived if Disney had decided to choose one of the other concepts. With iconic characters such as Pocahontus or Timon and Pumbaa, it is a really strange feeling to behold them in their unfamiliar states.
Part of developing any idea is going through numerous iterations of the concept. Whether it's designing the logo or even just defining project scope, it's always a good idea to be as thorough as possible. The idea is to refine details until it best suites the needs of the concept. The Disney concept illustrations act almost as a brainstorming session where multiple creations are spawned from an end-goal idea -- in this case being the actual look of the character. Check out all the Disney concept pieces to see how your favorite character could have looked.