Wreck-It Ralph (2012) - Characters: Fix-It Felix, Jr.

© Walt Disney Animation Studios

Pixel concepts by Scott Watanabe

by Tom Ellery

by Mike Gabriel

by Daniel Arriaga

by Daniel Arriaga

by Daniel Arriaga

by Daniel Arriaga

by Daniel Arriaga

by Daniel Arriaga

by Daniel Arriaga

by Daniel Arriaga

by Joe Pitt

by Joe Pitt

by Joe Pitt

by Jin Kim

by Jin Kim

by Jin Kim

Sources:
THECAB, AWN, Walt Disney Animation Studios, Jin Kim's blog, Mingjue Helen Chen's blog, Dan Cooper's blog, Art of Victoria Ying, Ryan Lang's blog, Nucleus | Art Gallery and Store, Cory Loftis's blog, Bill Schwab's blog, Daniel Arriaga's deviantART page, Collider, Concept Art World, The Pixar Times, IT'S ART, The Art of Disney Animation at Facebook, Disney Wiki, Parka Blogs, Animation Tidbits, the funkship, Glen Keane | Tumblr, mrjosh | Tumblr, wired.com, Babble.com, Concept Design Academy, A113Animation, Barry Johnson's website, ANIMATOONS, ZBrushCentral
& The BIG Network Ocean