Nice retro look, the the color and drawing style really fit that older style. Reminded me a lot of UPA's stuff or the UPA inspired stuff on Cartoon Network.
But what animation program are you using for this? Because the the pixelated lines on the zoom-ins and close-ups really bothered me, and I'm sure those were intentional, it kinda takes away from the whole retro aesthetic you're going for. The art style you used had a lot of thick lined simplistic drawings with repeating cycles, so a vector animation program like Flash would be perfect for this kind of thing and the linework would never look blurry like it did here.