Leroux is a student of Falguière and Jouffroy at the Beaux-Arts of Paris. In 1881, he presents his work at the Salon des Artistes Français, where he exhibits orientalist subjects inspired by his north African trips. He not only used marble, but also clay, bronzes or spelter. His art is dominated by oriental, or contemporary characters. He created carved patterns for le Palais de l'Artisanat which were exhibited at the Exposition Internationale of 1937.