Well, let me start by being honest:I'm not sure exactly what you're looking for. Are you looking for the original illustrations for Wind in the Willows, by E. H. Shepard? If so, you'll find a number of them at the site listed below, including a fine image of Badger. (Yeah!)
However, if you're looking for Potter's illustrations of badgers (she didn't write the Wind in the Willows), I'm afraid I'm stuck, and haven't been able to find them yet.