Left image from pinterest.se/ocruz65/lily-elsie/. Right image from Manuel Palomino Arjona's photostream on flickr; monocolor tint removed.
Here are fuller views of Lily Elsie’s dress seen in this image.
Keywords: 1911, Foulsham & Banfield, Lucy Duff Gordon as designer, Lucy Duff Gordon, Lucile, Lucy Sutherland, Lady Duff Gordon, A Waltz Dream, 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, skirt ornament, fur-edged over-skirt, maxi-length under-skirt, fur-edged over-skirt, buttons, shoes. theatrical dress