Sorry to dissapoint, but this month's competition is for NAMED characters from official GW fluff, like Karl Franz, Thyrus Gormann, Gorbad Ironclaw, Nagash (I'd be curious to see someone come up with a decent conversion for him) and the like.
Neither Shadespyres or Riverhawks entries fit that bill. Try and make a quick fix (So try to find some fluff fitting your model, now that you don't have a model fitting the fluff. To make it easier, I'll even accept characters from Black Library novels.