Well, it's just slightly different from my first try at it.
I made it using pepakura with fiberglass reinforcement inside and bondo on top. I had to sand some of the sharp edges from the polygons out to try to get it a bit smoother. I also tried using 500/1000 grit sandpaper and wet sanding to help improve the finished paint job. Though, because I ended up using acrylic paint to try to get the right color palette, some of this sanding work wasn't really necessary. I'm currently using furniture foam and magnets in order to hold it on top of my head.