Kyle, I love it! I don't think it's too saturated. The colours and textures work perfectly. Reminds me a bit of Quentin Blake. Timeless.
You've got wonderful larger-than-life characterisation which I feel is complimented by the saturation. If you had more greys in those colours I think it would take away from the strength of your illustrations. All of the characters are really marvelous - especially the mice. Love them!
Really good. Let me know when you are a rich and famous illustrator. It's bound to happen!