Indeed I hope Sophie is comfortable with herself - its the best way to be in you can manage.
However, I do think, in her own mind, she tries to be fashionable - even almost 'fashion leader'. How else is it possible to explain away the headgear she has accreted over the years - none of which I have ever soon worn twice. I cannot imagine she has a stylist. Nobody in their right mind would allow her to set foot outside her door in those hats. She has a mad milliner, in whom she trusts.
tsaria
PS: I don't like the dress she is wearing above. There is nothing that chimes for me in it. AND I loathe overblown, flowery fabrics.