He was one of a "school of French animalières", which also included Pierre-Jules Mêne, Antoine-Louis Barye, Auguste Caïn and François Pompon.
His works include sculptures for the Opéra de Paris, Palais du Louvre and the Fontaine Saint-Michel.
These improvements included a grand staircase ("Escalier d'honneur") which featured a terracotta sculpture of a hunting scene by Rouillard.
[26] [27] [29][30] In the centre of what is in fact a three part piece, an allegory of France in the form of a winged angel of victory, stands with arms outstretched, offering crowns.
Around her are four seated female figures representing "Justice", "Concorde", "Force" and "Religion" and bearing the appropriate attributes.