I didn't realize I would get so much advice 
and help. Thanks everyone.

To the people who think that the cel isn't an
exact copy. OF COURSE NOT!
First of all, there are a few differences, but
most of it was laziness.
One, the color is just different because they
didn't match the paint up right. They probably
used paint they already had available.
Two, the left hand isn't there because it was
probably easier to leave it out. (Makes it look
stupid, doesn’t it? ^_^)
Three, her head is wider, because the "artist"
didn't get it right.
They do this so it doesn't look EXCATLY like
the original. It's a sneaky way to try to worm
out of saying they didn’t copy it.

Someone used the same image to make a 
wallpaper once and I didn't mind too much. 
Of course she could have asked for my 
permission first, but I wasn’t angry and
let it be.
But this person is trying to make money off of
it.

I think I’ll just try the direct approach and e-
mail
the seller and have them remove it.
After that, I guess I could complain to eBay.

Thanks Star Phoenix for your advice and
e-mail BTW.

I doubt anyone in their right mind would buy this
“work of art”, but I’ll go ahead and e-mail
them anyway.

Thanks everyone!

Ke-chan