From theartstack.com/artist/sir-william-orpen/countess-markievicz-apr; filled in shadows.
Countess Markiewicz wears a fur hat and a fur over-garment and a blue jacket (or sweater?) over aa two-color criss-cross over-bodice. She could also be wearing a fur-edged coat or just a long fur stole.
Keywords: 1912, Orpen, Constance Georgine Markievicz, Constance Georgine Gore-Booth, Countess Markievicz, Countess Markiewicz, Gore-Booth family, Markiewicz family, British, curly coiffure, fur hat, lace-trimmed blouse, high enclosing neckline, necklace, coat, criss-cross over-bodice, fur wrap