This illustration was quickly drawn with ink. Then armed with a soaking wet 2" paintbrush in one hand, and a hairdryer in the other, I proceeded to soak the paper until the ink started to run. The shading spontaneously occurred for the most part. I rotated the paper to encourage the shading to go in certain directions, or used the hairdryer to stop the bleed altogether. The background and plant stem are digitally coloured.
This illustration also made Nicky's top weekly picks for The 52 Week Challenge Facebook group for Week 34, Butterfly (Wednesday August 27, 2014).