I'm more than a little bit biased

Well, the fact that probably it's your twitter account and you probably are part of the team that (will) handle those cards, should at least mean that you could start working on a better written website and more explanations.
Maybe a proper ANN for your business would also be good.
What I don't understand is.. you write like you would already deliver the cards, but on the other hand, you are on the Presale phase.
You should elaborate. And again, a proper ANN should be better. This way some will start searching for clues if the business is indeed legit or not. There were already a good number of token sales on this kind of ideas and most didn't end well...