This took FOREVER. Mostly cause of all the jewels. Thankfully I had a brush for them. It’s supposed to be the outfit described on page 184-185 (in my copy at least)of Wizard’s Holiday:
"Today the long overcoat he favored was in blue, and it was richly, even thickly, embroidered with jewels, in all shades of blue and green, some of them the size of marbles or quails eggs. Guantlets, tunic, boots, all were in metallic blues and greens, and the fillet binding his brows was of some blue metal."