Hi Ian thank you for this nice comment. I tried both canvas and acrylic paper, of course canvas is great and you can easily have control of your paints that lays so nicely, but it is an expensive way when you want to do daily exercises. I find acrylic paper is pretty good, especially for palette knife but it behaves differently so after couple of unsuccessful experiment now I know how I should use it. Just really the matter of learning by doing :)