I hate to be blunt, but senjin needs a reality check. Just because you have used a format/idea/look/etc in art once doesnt mean that you have a copyright on it. First: his images don't look at all like playing cards nor do they state it in their descriptions... second: artists have used cards as a medium for centuries. Tarot decks, playing cards, collectable cards, card games, comic decks, fantasy decks. Putting a green "A" on the thumbnail of an item that you are selling in the marketplace doesnt give you exclusive rights to using a deck of cards as a medium for art. I've been working on a Tarot deck for the last 6 months, does that mean that from now on noone can ever create a tarot deck again?