Unveiling the Charms of an Opera Singer In the late 19th century, photography was still a relatively new art form, and capturing the likeness of a person was a nuanced and delicate process. Amidst this era of photographic experimentation, a photographer named Liébert rendered a masterpiece that has stood the test of time - the portrait of Célestine Galli-Marié, a renowned opera singer of her era.