The images display Sean's concept design for the characters Sludge, Swoop (twice), Grimlock, and Snarl.
Sean states "My goal was to make them feel as if they had some Japanese aspects in them. For Sludge, I wasn't sure if 4 arms would work on him, but I figured what the heck, ya know? For Swoop I wanted to make him more ninja-esque.... Grimlock more Samurai-esque, and finally Snarl as more of a bruiser or a grunt from the bunch."
You can check out the concept art below, or head on over to Sean's blog by clicking here
