I love Brigitte Macron's red coat - reminds me of one of my style icons, Catherine Deneuve in Belle de Jour.
Agree with Cornwall though that her evening dress is rather "Cocktail Night in Ten Forward."
Both Mary's outfits are lovely. The black and white rose print is summery and slightly less formal, but then the black sash adds drama to balance it out.
Queen Margrethe's evening dress is magnificent - like an Edwardian Dowager.