From pinterest.com/johncoryell/stage-and-film-history/.
Amy’s wide-brimmed hat is decorated with feathers while Lily’s head wear is much more modest.
Amy Evans: 1911, Amy Evans, A Waltz Dream, feathered wide-brim hat, partlet, high scoop neckline, pouter pigeon bodice, scoop décolletage, quarter length close over-sleeves, contrasting cuffs, long tight under-sleeves, waist band, natural waistline, midi-length over-skirt, tassels, under-skirt
Lily Elsie: Lucy Duff Gordon as designer, Lucy Duff Gordon, Lucile, Lucy Sutherland, Lady Duff Gordon, Lily Elsie, curly coiffure, hat, chemise, high scoop neckline, laced over-dress, fur-edged blouson bodice, scoop neckline, long tapered sleeves, fur cuffs, waist band, fur-edged over-skirt, maxi-length under-skirt, fur-edged over-skirt, shoes