I've copied a lot of stuff from him before, but mostly by individual drawings. For example, he's famous for having been able to draw uber-expressive hands:
My favorite Milt Kahl character, by far, is Shere Khan, the villainous tiger of The Jungle Book. Of course, I'm biased in favor of big cats simply because I think they're so cool. But Shere Khan, in character, in design, and in animation, is brilliantly done. He's a consummate gentleman, though twisted and vengeful. He's graceful but strong, evil but controlled. When my roommate saw a video clip of the tiger he said "He's so gentrified!"
It's true. I mean, who else could so brilliantly handle Kaa, the python:
Or give Mowgli a 'sporting chance' before being devoured:
I decided to try to do a little pencil test, totally robbing a series of images from Frank and Ollie's "The Illusion of Life" (p356-357). Like I said before, using others' art for education and inspiration is great. Copy, copy, copy!