I did three sketches from the Late Night Worship sets at Soul Survivor this year. You can see them all on Flickr along with one from the previous year. I think this is my favourite one, a high contrast view of Tom Smith and others leading one of the nights.
It started with a blind drawing, following the contour of the negative space around the musicians and their gear. I then added shading with my pen before working over the area with brushed water. I think the separation of the black, showing blue (and some sepia) tones, adds an engaging depth to the result – another example of the chromatography effect I observed using this pen earlier this year.