Well, thank you!
I know what you mean. It can be disappointing when the art of a book cover, for instance, doesn't have anything to do with the actual book. Though in the artist's defense, oftentimes (in fact, the vast majority of the time) they aren't given a whole lot of choice over what sort of image they are supposed to do. And sometimes? Sometimes the description is just damn silly. Sometimes there's nothing you can do to make a cool monster out of a goofy idea.
It's been years, but as I recall the adventure this illustration was for had a medusa that was supposed to be a looker. I plead innocent!