Lady Kitty Spencer looked pretty in pink for a rare day out with both of her younger twin sisters, Ladies Amelia and Eliza Spencer, 33. The 35-year-old model and niece of the late Princess Diana put a ballerina twist on springtime fashion in family photos over the weekend from the launch of Eliza’s new luxury wine brand.  Kitty celebrated her sister Eliza stepping into the wine world with the launch of her premium Provence rosé, which is called Lala V after her childhood nickname ‘Lala’ and ‘vie’, which is the French word for ‘life’ The eldest Spencer dressed in a sweet pink and white striped sweater top, courtesy of Dior, which she paired with a tutu-style skirt that was covered with a sheer polka dot layer.  Kitty’s blonde tresses were perfectly swept back in a half-up style for the special occasion, and she opted for soft glam with a subtle smoky eye. “Lala V launch with my girls,” the model captioned a group photo alongside her sisters on Saturday, 25 April. Other attendees at the luncheon …