Her shoes might be unnecessarily basic, and I'm not truly madly deeply in love with the deep cut of the halter, but those are well and truly nitpicks. I think this is lovely on her.
And this would be lovely on YOU. Or me. I'll take it if you don't want it.
The collar detailing on this is AWESOME. I am transfixed by its blinding shiny.
And, in fact, the glory of the neckpiece makes an updo basically a requirement. This is kind of wacky, but I rather think it works. If she'd done something uber-traditional, I think the whole outfit might have looked too stuffy. Clap clap, Kate.