Sketch cards for charity

Steve Frank runs the sketch card company 5finity, and every year he does a charity auction for March of Dimes. This year I contributed 5 cards to the auction, and they're now up on eBay for bidding. I did my cards right as DC was doing their new 52 comics relaunch, so all the cards are inspired by the new takes on some of my faves...

Wonder-Woman, Batman, Superman (in his Action comics street Supes guise), Superman, and Supergirl