Now for some closer looks:
"Disney began work on crafting an animated adaptation immediately, intending it to be the company's second feature-length animated film and their first to be based on a specific, recent work. The original novel was written for an adult audience, however, and was considered too "grim" and "somber" for a regular light-hearted Disney film. The artists also discovered that it would challenging to animate deer realistically, and at the same time keep the characters slightly exaggerated and "cartoony". These difficulties resulted in Disney putting production on hold while the studio worked on several other projects." (from the Bambi Wikipedia cited from: Barrier, J. Michael (2003). "Disney, 1938-1941". Hollywood Cartoons: American Animation in Its Golden Age. Oxford University Press. pp. 236, 244–245. ISBN 0195167295.
For a while film studios were shutting down fan sites posting model sheets fearing folks would use them to create unlicensed knock-off merchandise.
There are some great model sheets from Bambi posted at these sites:
Michael Sporn Animation
Other model sheets:
animation archives.net - model sheets
Google Images search