There are quite a few 2014 series 1 sketches on eBay now. It looks like a more complete list of the sketch artists is as follows (in Last name alphabetical order): Does anyone know the name of the last artist listed?
Camera, Neil
Chalker, Jason
Comes, Ron
D'Ippolito, Vincenzo (Chenduz )
Engstrom, Brent
Gambino, Sam
Graham, Dustin
Kirscht, Matthew
Mark Pingatore
Mercado, Lily
Monserrat, John
Parisi, Mark
Pingatore, Mark
Potter, Steve
Simko, Joe
Smokin' Joe
Taylor, Strephon
Wheaton, Fred
Zh, S