The green was actually just an example for conversation. I've been experimenting with black and white, gold for helmets and some armor highlights. I also really really wanted to paint flaming wings, so started with that approach. They kinda overpower the other colors though, and pull me in a heavily red direction. the yellow recess on the flames also make the gold not stand out as much.
I was originally thinking some kind of malal theme. I really like the fluff for the renegade god. Maybe some craftworld or crone world lost in the Eye of terror and corrupted by chaos even as they hated chaos and themselves at it.
Also, I wanted to paint flaming wings. And I love fast moving armies but don't really like the jetbike models so was considering converting up some demon riders of some sort (maybe on white lions from the chariots box?). Also, flaming wings.... But it then forces red as one of my colors, to match, so I'm now reconsidering it. They turned out really well though. It's my first time painting since early high school 15 years ago, and man am I better at it!
The black/white quarters contrasting one is my favorite so far, although I think the gold pops more on the all blue model.
* I'm realizing I don't know how to take reasonable pictures of these. I'll try again in a moment.
https://i.servimg.com/u/f62/19/78/90/36/imag0012.jpg