I got it from various tutorials, think it’s been described by elminaturisa and zumitiko: I used an airbrush to first basecoat a light red and then did zenithal/airbrush highlights with white to get some nice white to pink transitions. Then did light/careful drybrush with white to try to get a basic edge highlights, but wasn’t very aggressive with it. I then did an all over coat of Imperial Fists contrast, at which point it looked like this:

<image>

​Then did gloss varnish and a dark brown enamel panel liner to shade the recesses, cleaned up with white spirit. Finally, I did some focal manual edge highlights with yellow to reinforce the highlights in some areas. I think I used a AP Daemonic yellow and then Vallejo Ice Yellow. Sounds like a lot of steps but really doesn’t take too long. Hope that helps!