Isolated image for closer examination if anyone needed it:
And some thoughts:
Is that blue line supposed to be a leash or tether coming from Azdaja's mouth? It seems to go down over Golbez' shoulder and possibly be gripped by his left hand on his knee/in his lap, behind the letters.
And does the backing of that throne remind anyone else of a paladin's blade in their new lvl 90 attacks? The one where swords come out of the ground or w/e.
EDIT: Sorry, the forum wasn't showing me that I got ninja'd to posting the clean image till just now. But mine's technically a different link, and imgur gives my browser fits for some reason, so I'm still leaving it here just in case.