It's easy to admit that by today's standards the early Mickey Mouse cartoons were primitive. Lush drawings and animation didn't really begin to appear until later years. Yet even though these films may not look as sophisticated as some of the Mouse's later toons, the animation art presented is still unique.
Below are background paintings from Mickey's Choo-Choo accompanied by actual screen shots from the finished cartoon. One thing you should notice is that at times the film does not make full use of the background, opting instead for a close-up shot. Enjoy taking a looking at the art behind the action.