On the other hand, JB always seems to have images pop up in many mediums.

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Larry Hama once commented that the success of the Image boys was in large part due to what he dubbed "copiability". Sit down to copy/swipe a Liefeld or a McFarlane, to name but two, and you will likely succeed. Better, at least, than if you try to swipe Joe Kubert or Neal Adams. To copy those guys requires some artistic talent. To copy the Image styles, not so much.

Same here, to some extent. You're less likely to see Alan being swiped BECAUSE he is SO DAMN GOOD. And that makes his stuff hard to copy!

But Bryan Hitch started out precisely that way.