Courtesy of ComicBookMovie comes two galleries of stunning concept art created for Marvel's The Avengers by Steve Jung and Nathan Schroeder, who both previously worked on Thor. In fact, Schroeder has seven Marvel Comics-based films to his credit, from X-Men to Fantastic Four: Rise of the Silver Surfer to Captain America: The First Avenger. Check out some of their designs below, and visit their websites to see more (note: the galleries may contain spoilers).

Directed by Joss Whedon, The Avengers grossed more than $700 million worldwide in just 13 days. The blockbuster stars Robert Downey Jr. as Iron Man, Chris Evans as Captain America, Mark Ruffalo as the Incredible Hulk, Chris Hemsworth as Thor, Scarlett Johansson as Black Widow, Jeremy Renner as Hawkeye, Samuel L. Jackson as Nick Fury, Tom Hiddleston as Loki, Clark Gregg as S.H.I.E.L.D. Agent Phil Coulson, Cobie Smulders as S.H.I.E.L.D. Agent Maria Hill and Stellan Skarsgård as Dr. Selvig.