In fact, here are the only two known pictures besides the fanpost of Abaddon, though it’s had mentions on several French manga Web sites. It’s possible to buy I guess, but I don’t know anyone who’s done so, much less scanned it. Not even its official ‘home page’ has anything besides the same image and a summary blurb, and that it was supposed to have started July 23rd. (The artist is apparently mainly known as well for the Shinjuku Swan series.)