Well I know its a lot of work, but you could take a Thor's Hammer or just Thor and put that on the deck.....I think that would be nice.
I don't know the level of the local artist, but I must say that you're missing a theme on you're decks, the text is neat, and I like the zipper

But I think you should pick a theme and design around it, like thunder....or destruction.
At the destruction thing you could make it look as if the board has a huge tear over it, as is you grinded with it, without you're wheels attached, that's by the way not one of my stunts....