Top R: 100 Bullets #12 (July 2000), art by Dave Johnson
Bottom L: Wolverine v .2 #27 (June 2005), art by Greg Land and Richard Isanove
Bottom R: Iron Man: Director of S.H.I.E.L.D. trade paperback (2007), art by Adi Granov
(Click picture to helicarri-size)
See also, kinda.
*pSychedelic Hip Images of Escher-Like Disorientation