I said royal women in general, the best example is even a Queen, Rania, who has a much more busy schedule with her own duties, four kids and is recognized for both her professional work and her looks. If you want me to name a CP it must be Maxima, whose schedule might not be as busy but she does a lot on her own, which is damanding in its own right. I don't say she is always on top of her looks but she always shines and shows her famous vibrancy, despite taking care of three daughters.
My problem with Letizia is - and I have stated that in earlier posts - that I cannot judge her much on her work as I don't see her do any visible work on her own, apart from three or four events since her marriage. She accompanies Felipe, ok, they work as a team but it's always him who does the visible work: speeches, prize deliveries etc, even in fields that would be perfect for Letizia to be occupied. So all I can do most times is judge her on her appearance which has gone downhill when looking back to the beginning. It's her job to look good - something she fulfilled excellently in the past but not anymore, even more important since her role offers no space to do much more.