It was at least three years ago when I first saw this illustration for Nike 6.0 in a magazine:
Every time I've picked up a pencil since, I've had this illustration in the back of my mind, atempting to pick up on some of the great detail and warped perspectives. I finally did the research and found out who's pen was behind it: Adam Haynes. Some of his clients: Nike 6.0, Timberland, Adidas, ESPN, Fuel TV ... Not bad.
When it comes to inspiration, I don't need to look any further than Haynes (Squidbillies illustrator Ben Prisk is a close second, then Stephane Manel). Check out his online portfolio.