Portrait of Giulia Teresa Marenzi in the garden Pietro Bouvier (1839-1927)

The picture has something of this: flower, dress, girl, people, wedding, portrait, bouquet, beautiful, child, bride, princess, nature, garden, woman, tree, fairy, smile, rose.
Perhaps it’s a painting of a little girl sitting on a bench next to a table with a cake on it and flowers on the table and in the background.