Two other good full shots are here and here.
Thanks to the Irredeemable Shag for sharing his hundreds of pictures, and the Superhero Costuming Forum for arranging the shoot.
Dragon*Con 2012 Cosplay Galleries by Shag Matthews
- DC Cosplay Obscura @ DC Bloodlines
- Aquaman @ The Aquaman Shrine
- The Atom @ Power of the Atom
- Black Canary @ Girls Gone Geek
- Booster Gold @ BOO$TERRIFIC
- Doctor Fate @ Tower of Fate
- Doom Patrol @ My Greatest Adventure #80
- Firestorm the Nuclear Man @ Firestorm Fan
- The Flash @ Speed Force
- Hawkman & Hawkgirl @ Being Carter Hall
- Martian Manhunter @ The Idol-Head of Diabolu
- The Vixen and Zatanna @ Justice League Detroit
- Wonder Woman @ Diana Prince