This was just a quick sketch, doodled at my desk while waiting for something to process. I had planned to spend some time doing a version with my Inktense pencils, but didn’t get the time. So I took this one into Photoshop and had a very quick play. I added a new layer, picked a big brush, set the opacity to 50% and painted some colour on. I quite like the effect – it looks a little like water colour – and I might have a go at spending some more time on it (when I have some!).
Here’s the original biro sketch: