Paul César Helleu. Portrait of Alice Louis-Guérin, 1885 (Musée Bonnat-Helleu, Bayonne).

Pastel on canvas: 118 x 74 cm. He’s definitely going to marry her (she’s the one in that John Singer Sargent portrait of 1889).

Visit > Musée Bonnat-Helleu, Bayonne.
More > Paul César Helleu at Wikipedia.