Skate Board Art WIP

So a friend of mine is having a gallery show and he wants everyone to paint up a skate board deck .Awesome idea .i managed to hunt down a blank deck and primed it .I wasn't quite sure about how to go about thumb nailing it so i scaled down the measurements to fit on my trusty 5"x7" cut boards.
I drew out and inked in my idea and then i was looking at it and thought what the hell i should cut it out and bend it to loo like a real board.Gave me a pretty literal interpretation of what to expect when i work on the real thing.