Blimey, I wouldn't like to meet Cecilia Bowes-Lyon down a dark alley...
I have a photo of my great great grandmother in a similar bonnet and black silk, looking similarly grim. Not a lady to mess with.
I love those trews and also the jacket on KM. The wider leg is a look I haven't seen on her before. Looks fab.
The right hand shot in the photo posted by itswinetime was a very unfortunate angle, I agree, but KM's left butt cheek looked fine (there's a sentence I never thought I would type...)
I think the jacket was gorgeous in the khaki colour. A black or navy would have looked wrong, too businessy, and a brighter colour would have been too glam. The khaki was perfect with the trouser colour and the white top and perfect for the occasion, which was a bolstering of military families coming up to Christmas. I would have gone with a clutch to match the trousers instead of the khaki one. Maybe patent.
I like her pony tail too. Is it my imagination or has she worn a pony tail quite a bit in the recent past? It's nicer than CP Victoria of Sweden's severely pulled back style imo.