I tried colouring one of my designs with various colours instead of just using black, just to see how it would look. I not only used various colours , but different thicknesses of pens. My initial thought was that the colours for me did not work and the squiggles I did in thicker pen and the colour I used was definitely not to my liking. But then it was only an experiment. Maybe the use of different colours would have been more pleasing. This is
something which has room for further exploration.