My favourite pic - Batman and Harley Quinn - Arkham City
Batman Arkham City Game Wall Silk Poster 20x13" Super Hero Joker
Joker - Pictures & Characters Art - Batman: Arkham City
21 Incredible Pieces Of Concept Art From The Batman: Arkham Games
Two Face / Batman: Arkham City
Love List for Batman in 'Man of Steel 2' More
Batman: Arkham Asylum Poster - Differing from its prequel, Arkham CIty uses here black and white and red, creating a Film Noir appearance and a much more grittier style than what is usually used in superhero games.
Check out Pete's review of Andy Schmidt's The Insider’s Guide To Creating Comics and Graphic Novels here: http://chaptersandscenes.wordpress.com/2014/03/16/pete-reviews-the-insiders-guide-to-creating-comics-and-graphic-novels/