From the lost gallery's photostream on flickr; spots removed with Photoshop. Also posted to Grand Princess Elena Vladimirovna’s Subalbum here.
Elena Vladimirovna’s full upper sleeves narrowing at the elbows and below point to the time of spyglass sleeves, the late 1890s.
Keywords: Serov, Elena Vladimirovna, Princess Nicholas of Greece and Denmark, Grand Princess, Princess, Romanov family, Glucksberg family, curly coiffure, hat, chemisette, high enclosing neckline, jabot, coat, lapels, lining, long tapered sleeves, belt, peplum