I like the Epinone dress (don't love visible buttons myself but nonetheless). I also like that it seems a local London brand sort of so she's choosing designers with care. I looked up the homepage now and I love loads of their things.
I think that green outfit for the sports is fancy leasure wear done great! Relaxed, fluid, active.
Those pictures of Estelle posted about are gorgeous. THe dress is from Bonpoint and costs about 700 pounds, which tried to become a scandal but couldn't because no-one in Sweden is prepared to be critical of a child's clothes 