SDCC 2011: The Avengers Exclusive Concept Art Set 1

Gaze at these wonderful concept arts for the upcoming mega-movie, The Avengers!

Black Widow SDCC 2011 exclusive concept art poster by Ryan Meinerding

SDCC 2011 Iron Man poster by Ryan Meinerding

SDCC 2011 Captain America poster by Ryan Meinerding

Source:  http://marvel.com/news/story/16344/visualizing_the_marvel_cinematic_universe