As card backs go, it's rather bland. I would NEVER have guessed AVFF out of that icon, not in a thousand years. AMA would have been my guess, despite no resemblance to the logo of the American Medical Association.
Beyond that, what else is there to say? There's nothing else to evaluate.
Be aware that the majority of similar such personalized projects fail on Kickstarter. It makes plenty of sense to you, but that doesn't often translate to the investors roaming KS looking for something to back. I remember a guy who was making a deck project dedicated to his daughter, he claimed, despite its resemblance to a Dan and Dave deck. He completely refused to explain this bizarre connection in relation to the deck's design, so in the end he was the only person who knew it and cared about it. Big downward spiral, there - not successful.
If you and/or your brother were some kind of celebrity, it'd be a different story - but you aren't.