This outfit feels glam and casual to me. I think it's the off-white platform sandals(similar here), and the white dress(similar here) worn as a top and cinched with the belt worn over the long skirt(similar here). The combination of the dress and skirt creates a sort of vintage gown. Only a well styled look can blend so many different styles and pull it off as this one does, and the printed scarf(similar here) is a beautiful addition in terms of adding colour to this look.