According to the number of the photos with painted new Death Guard marines, players really liked them. Here's another portion.
It's all the army of Maxime Pastourel - Games Workshop designer, who created the new Plague marines.
Some of these miniatures you could see before, but now they all are arranged into one diorama at the Warhammer World.
Also, there's an interesting interview with their creator at the Warhammer Community site: https://www.warhammer-community.com/2017/06/22/army-showcase-maxime-pastourels-plague-marines-june22gw-homepage-post-4/
This renegade warband is called Plaguebones. All these conversions remind you of the new Death Guard design.
So, perhaps, with the inspiration from these photos, you might expand your Death Guard army yourself.
