Okay, so I don't know anything about fashion...but I liked the gown Sonja wore. Maybe not the right one for an official photo shoot, but I think she looks good in it. It fits her very well and shows that she has an excellent figure for her age and just about any other age. And, to me at least, it makes her look taller. Some of her other gowns, especially the ones with the REALLY long sleeves make her look short. And while it may not be everyone's cup of tea, this gown is 1000% better than that hideous salmon gown worn (for the millionth time) to the Swedish wedding last year.
As far as the portraits themselves, overall, I think they look very good and professional without seeming like a news ad (as the last Asturias portraits have been described). The crown princely couple together and individually look very good. I'm not always a fan of Sonja's hairstyles, but I highly support, appreciate, and applaud the fact that she doesn't appear to have had plastic surgery or botox. Yes she has wrinkles, and the fact that she isn't afraid of them makes her even prettier to me.