Horse Eating in the Sun 6"x8" Oil on Canvas

I have painted this horse several times, mostly on small canvases. The light on this horse intrigues me, especially because he's a pinto, or paint horse - he does have some black in his mane and tail, so there are all different ways the light is being reflected—off white and deep brown, and even greenish yellow reflecting up from the ground on his belly; and the shadows are long because it was late afternoon, so there's a bluish cast to them.