>>96564085
can't really give advice there, since i got the metal color ones i make do mixing the gold with copper and gsw gold pigment as vince suggested (its a pain tho)
>https://www.youtube.com/watch?v=26_1W7zR-cA

the crown in picrel was painted with that, it's not the usual saturated yellow/orange gold, but it looks good

summoning black templar anon, iirc he uses the pigment by itself