 His Pan and Diana in marble accompany the group.In the new Square Emile-Chautemps at Le Sentier, Paris IIIème, among the sculptural figures enhancing two oval pools under the general artistic direction of Gabriel Davioud, Ottin was entrusted with seated bronze figures of "Mercury" and Music".In the extensive sculptural programme of the Palais Garnier for the Opera, Ottin was entrusted with "La Musique" and "La Danse" seated figures leaning on a central medallion in the arched pediment on the west-facing facade.