Excellent gold NMM here dude. Didn't know you were capable of this. Have you considered doing a mini in all gold armor? My bet is that it'd be stunning. Or, even though they are quite played out, maybe paint the sanguinor or one of those 40K minis that take so well to NMM. Or Sigvald. Or a Hassle Free Mini....work to your strength, which is clearly NMM!
This is something to be proud of! Every artist has that's landslide of a masterpiece and though I feel your best is still yet to come , this is a landmark achievement in your painting mate! Perfect painting wizardry!