Cover: The two guys after a fight (Black eye!!) sort of exhaustedly flooped on each other, half nekkid in the snow, with satisfied smiles.
(Srsly, I suck at covers. XD)

A-kon: I like rachelmanija's idea about the time-skipped Naruto characters.
Ginko would be awesome too!
(Does it have to be Anime, per se? Because Avatar fanart of Zuko or Jet or Iroh might go over well?)