While you can always count on BioWare artist, Matt Rhodes, for awesome Mass Effect art, he doesn't often venture into superheroes. Back in 2010 though, he created one of the most awesome pieces of Batman fan art out there. Here's his description:
Batman drops in on Poison Ivy. I wanted to design a very practical, contemporary Batman. Something more S.A.S. than Ninja. Not trying to be cool, just getting the job done. I also thought I'd try Poison Ivy. Her usual costume never made a lot of sense to me, but I couldn't come up with anything better.