Oil on Masonite, ACEO (= about 65 x 90 mm):
I haven't painted anything in ages, but have been itching to do so, and to try out a medium I haven't used in years, namely oils. I was rather relieved to see that while my painting has become a bit rusty, my old oil paints are for the most part still perfectly usable.
To start with, I stuck to a limited palette of black, white, yellow ocher and burnt umber. For this sort of subject matter you don't really need much else anyway, though the reference photo I used was definitely more colorful, particularly in the background.