Superman Flyby Art & Doomsday

Recently more concept art from Superman films that never happened have made it's way to the net.  Included is a piece of art featuring Doomsday that was done for Bryan Singer's Superman Returns or a possible sequel.  The rest of the art comes from concepts based on J.J. Abrams abandoned Superman: Flyby script.  Interesting to check out in the lease so here you go.