As you can see, it is painted in the Doom Angels colors and not the Ravenwing colors. The wings are painted in white and grey, as the wings of the Doom Angels.
The centreboard is not one of the Nephilim, but Dark Talon. Aesthetics matters.
I also scratched the imperial Eagle of the front, replacing it with a "Dark Angels" scripture.
Finally, the Ravenwing symbols are not original ones, but those of the Dark Angels cluster.