There are too many different things going on in CA's outfit...the cloche which doesn't match the dress which doesn't go with the green of the emeralds. Maybe she put it all together with her teenage-girl taste, and Max let her go with it. I hope that's the case, because it would have shades of MT of Luxembourg if Max were choosing to put her daughter in something that isn't as flattering as it should be.
As I said, the hat was bad, the emeralds are green as was the dress, so that is considered suitable and IMO the purse/clutch was exactly what a young girl would choose. It is fun, it is young and even though it didn't match the jewels and the outfit (or the occassion) it is something that girls her age would really like and carry.
As with Maxima's outfit: The model is fabulous. It is a design that looks great on Barbie, but not on a real life person. Maxima is very tall and also quite slim (not Kate or Leti-thin, but compared to the average she really has a great figure - the camera does add a couple of pounds) and she looked covered in a bed spread. Perhaps because of the scuba-dive fabric I don't know, but this is a model, that would best be left as a sketch.
Did the little fairies see her ensemble and did they approve, that's what I want to know.