The small temple of classic look already announced the Art Nouveau manner associated with the architect. Although loyal to the formal vocabulary of classical architecture, Horta already managed to incorporate all elements of the new style. At first sight, the building looks like a classic temple. However, there is not a single straight line in the building. Every classic detail is revisited and reinterpreted. Horta succeeded in designing an almost "organic" interpretation of the classical temple, without completely abolishing any reference to an historical style. Slightly bent like the foot of a tree, the walls seem to have sprung organically. After World War I, Horta would return to this classicism in his designs for the Centre for Fine Arts and the Musée des Beaux-Arts in Tournai.