I like the black one, but I do want to say that it looks a bit like you awkwardly tiled the same picture of the cards and then just cut an outline out -- it would have been better if all of the cards were different and there wasn't that weird black line running down the middle -- clever pun, though!
I didn't know what you were talking about until just now Kittice, but I just noticed that "black line." I'm not sure why that appears there, but in the high res copy I have on my comp, the cards are flush against each other and there is no black line. Unfortunately, I didn't notice this before, thanks for the heads up!
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