Tim Beedle, formerly a Tokyopop editor and now a freelancer, has two interesting posts on his blog about choosing the artist for the Muppet Robin Hood comic (which he wrote and fellow Tokyopop alum Paul Morrissey edited). The first set of drawings is an audition comic by Armand Villavert, Jr., who was the one who got the gig; the sample pages that Tim shows aren't in the finished comic, though, they are a sequence Villavert wrote himself, and they include some pages colored in a very different style than the finished comics.
The other sequence is by Amy Mebberson, who went on to draw several of the other Muppet Show comics (and is now one of the artists on Strawberry Shortcake). In this case, Tim shows both Villavert's and Mebberson's versions, and it's fascinating to see how differently the two artists handled the exact same script. Choices have consequences!