An impressionistic oil sketch of a dog looking out of the window.
Worked swiftly with a very limited palette of transparent oxide red, Prussian green, cadmium yellow light and white. You get some very nice, rich darks using this particular red and green. Painted on a prepared A4 board and using biggish brush - a No 6 flat. For any fiddly bits, I turned the brush on its side and used the corner.