What is the most famous painting by the painter of Symphony in White, No. 2?
Symphony in White, No. 2: The Little White Girl: Symphony in White, No. 2, also known as The Little White Girl is a painting by James Abbott McNeill Whistler. James Abbott McNeill Whistler:  His most famous painting is "Arrangement in Grey and Black No. 1" (1871), commonly known as "Whistler's Mother", the revered and oft-parodied portrait of motherhood.
Arrangement in Grey and Black