Only the titles are obviously different. The concept of the story is the same, except instead of Reagan-era paranoia about the "Evil Empire" starting WWIII, I'm using that old standby of a zombie apocalypse. With zombies running amok, the few human settlements left have become widely scattered and the only way for them to trade with each other for supplies necessary to their survival is through the air. But this has given rise to "air pirates" who are exactly what you think. There's also a mysterious hero in a strange airplane who's known only as the "Sky Ghost" who defends the innocent from air pirates--sort of like Batman in a plane.
So here are some cover ideas I came up with, using the above cover as my inspiration. There's a little bright purple outline around the cockpit and logo that's because I'm mocking these up in PowerPoint and it's not real great at making things transparent. And if you see any "Fotolia" logos it's because these are just rough comp images.