10th Anniversary Amano key art [6.5+ Spoilers?]

[Cilia]

What are the odds the woman in gold could be a visual representation of Etheirys itself? We know the planet has its own will distinct from Zodiark and Venat, both of whom were in many ways what one might call usurpers. With Zodiark destroyed and Venat deader than dead, mayhaps the world's own will finally gets an artistic representation?

Prrrrrobably not? If Etheirys has a will, it's inscrutable and indifferent to the happenings on and around it. Etheirys didn't help the Ancients with the Final Days, despite their (ostensible) millennia of devotion to improving it, and would have been annihilated in the same. Kinda why Zodiark got summoned, y'know?

Having some greater power would be contrary to Endwalker's existentialist underpinnings, and it's a piece of artwork for the game's 10th Anniversary, in which Hydaelyn played a pivotal role; and as mentioned Amano's artstyle isn't 100% consistent, so that's totally no reason to think it's not Hydaelyn.

Maybe I'm wrong, but I can't see it as anything other than Hydaelyn given the context.