Other 20th-century dealers at the fair include Patrick Seguin , Galerie du Passage , Yves Gastou , Anne Sophie Duval , Downtown , Jean-Jacques Dutko , Jousse and Galerie 54 , all from Paris ; Yves Macaux from Belgium ; and Bel Etage of Austria , whose booth is a reconstructed apartment of the Viennese Secessionist architect Otto Wagner .