I've been applying lots of layers of colour to build up to the right shade of bay, and applying subtle shadows and highlights, which again have built up to produce the right effect. I have started blocking in colour on the bridle now, as well as some finer details on the horse, such as the tiny wrinkles around the bottom of the muzzle. There is still quite a way to go until its finished, I'm looking forward to getting home from work tomorrow night and getting the horses done so I can come home and carry on painting!