Hey, Jason.
What we have here so far isn't really a deck yet. It's a few possible backs and an Ace of Spades, all of which so far is rather generic. Perhaps if you showed more of the deck concept or discussed what your inspiration and aspirations are regarding the deck, it might help give us something to work with in terms of giving you advice.
Two pieces of advice that would apply to any deck designer:
1) If you're making a deck, especially a deck in a theme that's been done before, you'd better make your deck better than everything that came before it if you want to catch people's attention.
2) Being "unique" and being "good" are not always the same thing. Don't be unique for the sake of being unique and nothing else. It tends to lead people to create decks that are too unique for their own good. Have a reason for being unique and make it a good one.