That looks awesome! How did you get the gold? Was it painted?
The gold is from a paint marker (DecoColor). I use paint markers instead of paints on printed parts because they coat the surfaces more uniformly and even drip into the grooves a bit. The gold in particular works well because it leaves a nice foil look :) I strongly recommend you try it!
Very cool! I'll have to try it out when I get a chance on some of my prints