To be honest what is the big deal. Most people 
that have website like the ones mentioned have no 
clue that people actually own these cels, 
sometimes they just use a picture from a screen 
capture they might have. It's just a picture that 
is being used as a graphic, big f***in deal. 
There is no way to stop it. I personally would 
take it as a compliment if someone used my cels 
in their work.