Draw round anything with a thin pen and you get an interesting effect. It’s something I do occasionally as a meditation. Trying to keep a little distance from coloured splodges or around lines that I have already drawn or doodled. Somehow the lines remind me of the contours on a map, because they seem to join things together. Mostly I look at the back of my pictures and see if the ink has bled through it. I’ve written about this technique here before. It’s a way of creating something a little more abstract.