Digital Graphic Designs

I am looking for someone to create some digital graphic designs that will be used for laser engravings based upon a different design. There is a very cool aztec calendar design based upon Star Wars that has been developed. I am looking for someone to create 2 different designs based upon this concept, but one would be based upon DC Comics characters and the other would be based upon the Christian faith. Because of these two subjects, I am looking for someone who has some knowledge of both of these topics. Deliverables would be bmp high resolution files (5000mmX5000mm, 100dpi), in black and white. I'm attaching a sample image to this project to give you an idea of what I'm looking for. Winning bidder will have creative input but will also get some direction from me about overall design. I'm looking to have this project completed within 7-10 days. DC Comics design - I would like to have Superman and Batman back to back at the center of the design. On the outer ring, where characters are smaller would be some of the less known DC Comic characters. In the middle ring where characters are a bit larger, would be some of the other more well known characters, such as Wonder Woman, Flash, Green Arrow, Supergirl, etc. Character designs should be based upon the comics, NOT upon movie or television versions. Christian faith design - I would like a cross in the middle, below the cross I was thinking the tomb with the stone rolled away, and above the cross an image of Christ ascending into Heaven following his resurrection. The center ring should contain major events such as the birth of Christ (maybe a child in a manger), the last supper, feeding of thousands (maybe a basket with the fish and bread), and the outer ring would contain other Bible events such as the ten commandments, parting of the sea, and other events. Perhaps on the left and right sides have the hands of Christ showing where the nails were driven.