Princess Estelle and her younger brother were picture perfect as they posed for a new set of official portraits, released by the Swedish royal palace to celebrate Midsummer. Estelle clearly loves her role as big sister, as she doted on one-year-old Oscar in the sweet pictures. The five-year-old, looked ever so sweet in a white summer frock with her hair tied into two braids. One photo showed Estelle holding onto her toddler brother, who was dressed smartly in a blue striped shirt and white trousers. Another picture showed the siblings smiling at each other, with the impeccable Haga Palace gardens visible in the background.Photo: Erika Gerdemark, The Royal Court, Sweden