A light painting session in the tunnel wouldn't be complete without a bit of wire wool spinning so here is my effort with the addition of some red light to illuminate the brickwork.
I used the 'Live Composite' function again to watch the progress as the image developed and is the result of multiple 20 second exposures over 8 minutes.(8 minutes at 20 secs f/8 @ 7.5mm fish eye lens)

Photographer: Stephen Elliott