X23 as Sasha Greyby KennyRuiz
Comic Art by Kenny Ruiz
The incredibly talented artist known as Cliff Chiang
These bad-ass Marvel/D.C comic hero and villain themed collages are done by Mike Alcantara who runs a cool Etsy shop where you can buy some or all these cool comic book themed collages.
Your favorite Marvel comic book characters such as Captain America, Wolverine, Incredible Hulk and Thor just to name a few are re-made geometrically by artist Eric Dufresne.
http://www.behance.net/gallery/MARVEL-GOES-GEOMETRIC/3910781
These are comic book portraits by Sandra Chevrier a Montreal based artist.
The Collage like comic booked face portraits containing famous comic book characters and comics such as  Superman, Green Lantern and Batman.