My opinion:
Her Majesty The Queen of Norway was the summum of elegance. The double diamond rivière, the diamond earrings, brooch, etc. formed a nice set together.
Her Royal Highness Princess Máxima of the Netherlands, The Princess of Orange, surprised in a positive way. At first sight I was a bit disappointed with her loose hair, but as she wore no diademes, it was okay. I liked the combination of the dark green, very feminine-cut, velvet combination with parts of the emerald parure. I saw dangling earrings, a diamond cross with an central emerald and a big historic cabochon as pendant, two emerald bracelets and a ring with a big emerald knocker. Wonderful.
Her Royal Highness The Crown Princess of Norway was one of the highlights of the evening. I thought her gown did look very much alike the grey gown worn by Princess Máxima in Sydney, during the banquet with the Governor-General. That was a Valentino and I have the idea this was a Valentino as well.
Her Royal Highness Princess Madeleine of Sweden was a big disappointment. She was too Britney and too Paris Hilton. Not that she was tasteless or something, but I don't get the message she wants to make with her clothing.
Her Royal Highness The Crown Princess of Denmark was a surprise. I expected her, as always, competing for being the most fashionable royal but this time she did look gloomy. In nothing she showed to be Denmark's future Queen.
Her Royal Highness The Princess Royal is a lady aged over 50 and should not be compared with someone like Princess Madeleine. But I would suggest her to shop once together with her sister-in-law, Camilla of Cornwall, who has developed a very own, feminine and ravissante style.
Her Majesty The Queen of Sweden was her perfect herself as always. She did not stand out tonight but was for sure -as always- exceptionally dressed.
Her Royal Highness Princess Laurentien of the Netherlands surprised -as always- with a very personal style. Her design, colour and pattern stood out but I thought she did look lovely. The wonderful diamond broche and large earrings (prongs from the gold-and-diamond East Indies Diademe) made her sparkle. She was dressed as I would like to see a Princess to be dressed.
Her Royal Highness Infanta Cristina of Spain did disappoint a bit. Like Crown Princess Mary she did look a bit un-festive and gloomy.
Her Royal Highness Princess Mabel of Orange-Nassau was another surprise again. After the bows and the futuristic gowns she surprised with an exquise black lace gown. I agree with all posters about the visibility of her bra. At the same time she has not revealed any naked flesh, still the feeling remains that this extremely fine gown was destroyed by the bra. If she had worn a sort of strapless bodice beneath it, she probablu would have been one of the stars of the evening. I found the white-black sweetwaterpearls in the modern setting a mismatch with the exuberant lace top.
Her Royal Highness The Crown Princess of Sweden was such a grey mouse. Her gowns look interchangeable. I know it is not true, but in my amateur eyes it looks she has ordered a dozen of gowns in the same design, but each in a different colour, if you understand what I mean. In fact Crown Princess Victoria showed far more naked flesh than Princess Mabel, but we all understand the difference.
Her Highness Princess Märtha Louise was colourful and vibrant as always. I was not so hallelujah about her hairdo. The gown did look a bit too Nineties to me, but for so far she was the star of the evening with her wonderful ode to her father.