Perhaps the silver fabric expanse is a good foil to the Silly Hat.
Not that I think it's silly. I find it much preferable to the staid if not frumpy hats favored by HMQE2.
Also, one might hope the Silver Expanse is relieved or balanced by the lower unpictured part of the outfit.
And, Personally I find it so refreshing to see a Crowned Head not looking like a lampshade, and good for her for wearing something new and personally chosen in jewelry, rather than the crown jewels.