This cat, watching from his vantage point in an abandoned building, appealed to me because of the contrasts: organic vs man-made, blue vs orange, dereliction vs life. It is also very typical of a cat, I thought, to find himself a nice discrete spot from which to survey the world.
Painted on canvas board using an acrylic colour block-in as an underpainting, then in oils using a palette knife (except for the cat). My colours were limited to blue, orange, black and white. You can make a lovely selection of greys from these colours. There was also a speck of lemon for the cat's eyes and a speck of alizarin (plus white) for his ears.