This Muhtesem Yüzyil - Magnificent Century photo contains
demoiselle d'honneur, demoiselle d’honneur, robe de dîner, formel, robe de soirée, formelle, and robe.
There might also be
bustier, épaules nues, bretelles, nus, bretelles épaules, robe de bal, robe de cocktail, and gaine.