All this is the work of Mike Alcantara, an artist based out of Austin, Texas. He creates superhero-based art out of superhero comics, marrying the retro feel of Golden and Silver age newsprint with the striking style of modern comics artwork. Each of his prints costs about $20, or you can get a deal and buy three for $50, and they’ll be shipped to you in a flat mailer.
Of course, you could really go nuts and buy one of his more ostentatious pieces, like this one of Conan, for $325. If you’re really, really into comics-based art.