Hi Arty thanks, the black is usually a mix of the darkest colours on the canvas, sometimes with a little lampblack added. Funny when I started making different marks I used them just as an embellishment really, but now I think they are like threads hold the painting together, they dont have to touch but just sort of nod to each other.It was the balance or lack of that I was thinking when I posted, so glad you think its well balanced. I Cant imagine using a limited palette on your bright and beautiful paintings