This is one of several pieces of "fan art with a theme" by a member of DeviantArt: Barda and Shiva wearing pro bowler Mike Fagan's trademark argyle shirts.
The reason I say "fan arts with a theme" is because he's requested other characters to be similarly dressed:

• http://fav.me/dcw2cmh
• http://fav.me/dcsnay1
• http://fav.me/dcp4gxy

Perhaps he's a big fan of bowling in general and Mike Fagan in particular.
Anyway, these two tough women are likely to attack bowling pins like they attack their enemies. just look out for the wooden splinters flying all over the alley!
Hope you like this!

NOTE: Characters created by DC Comics.