Thanks!
I guess it was a very big softbox to the left and above, one big reflector to the right nearby the model and one stripbox behind for the background. The feathers were thrown from left and right by two people, I shot 20 takes, choosed one after and added three feathers from another.
Now that I have that out of the way...
That lighting is straight up dope man. That is top-quality right there. There is absolutely nothing wrong with that photo that I can see at all. It's perfect. Perfect.