Some honest critique: I can definitely tell you were trying to control a card, which is not ideal in a performance scenario. You don't want to scream to your spectators that you're doing anything with the cards, and this does that. While a neat idea, it isn't something you could use for real world use. There isn't motivation for spreading the cards forward in that manner because they're supposed to already be squared up in the action of pushing the card in, and it looks heavily unnatural.