I had a hard time getting the colors in this portrait right. I did it in acrylic on a 15- x 22-inch sheet of gessoed 140-lb. watercolor paper. I’m not painting on that flimsy stuff any more. Watery paint kept gathering in the valleys of buckling paper. I’m beginning to prefer acid-free illustration board or 300-lb paper that will take almost anything. Canvas is good, too, but then I’m stuck with the format–I can’t crop out anything if the composition doesn’t work. And sometimes it’s fun to run some pastel over things, which I doubt would hold well on canvas.