"Matt Wilson, the card's illustrator, was then Magic's art director and thought the use of censored art on Censorship would be funny."
Here are the two cards in question. You can definitely see the similar color scheme going on in each.
The art was cropped for Keeper of the Mind because the pose of Matt Wilson's female wizard was just a little on the risqué side. There was no nudity or anything, just a bit too much Sex Appeal for a Miss Demeanor (which are two other Matt Wilson Unglued cards, get it?):
With the black bars removed (but the pixellation preserved), you can see how the original art might have lined up.