The cartoon on the left was printed September 4, 2004 and the one on the right was printed August 11, 2004 so I'm comparing cartoons drawn within a month of each other. The one on the right is the typical Buddy Hickerson art style, especially the way he draws eyes. The one on the left, while outwardly similar in its crudeness, is obviously drawn by someone else. Even the signature (on the left) looks suspiciously tacked-on.

Now, I don't mind Buddy allowing other people to draw his comics but he should, at least, give them credit.