Rebecca Morris Untitled (#03-07) 2007 17.25" x 14" [installation view]
Berlin's Galerie Barbara Weiss showed this small exquisite Rebecca Morris painting in their booth at the Armory.
There are more images of Morris's work on the Berlin gallery site and on Google, but while looking (unsuccessfully) for the artist's own website, I realized where I had last seen her work. Go to the "Abstract" link in this entry for images of her work in a Mitchell-Innes & Nash show of just a few months ago.