So here’s just a speedy little tutorial I threw together to show how I made the opalescent color on one of my Black Friday dragon Teos.
Since opals are like fire (very inconcrete) - this is a highly stylized
technique and is more of a suggestive starting point than an authority
on how to actually render realistic opals. It worked in getting a quick
and easy result for me so I thought it worth sharing! :)