I managed to get my Nurgle marines pretty much done. I still need to do the IG allies I plan to give them, their human "Gravedigger" auxiliaries. Up above is everybody's favorite destroyer hive host, Typhus. The armor was white a few thousand years ago, but it's gotten a little more "antiqued" since. I went with red for the power weapons.
Plague marine squads - first plasma squad.
Second plasma squad.
Dread and spawn for potentially unfortunate champions. I declined to do the potential Daemon Prince up at this time, but will get to him eventually.