As the marathon that is fashion month draws to a close, Aurélie Bidermann hosted a cocktail in Paris last night to present her new fall collection. Bidermann, in Issey Miyake, welcomed guests into the hôtel particulier on Avenue d’Iéna, in the Sixteenth Arrondissement. Friends Laure Heriard Dubreuil (in a Céline skirt), Caroline de Maigret, Constance Jablonski, and Sofía Sanchez de Betak were there to admire the colorful, fanciful collection, as was _Vogue’_s Virginia Smith and Elie Top, who presented his first jewelry collection last couture. The musical duo aptly named Duo in Uno serenaded farewell to Paris Fashion Week with their guitars.