Lower Thames Street Tunnel

Long back I pegged this as a potential blip when I had by big tripod with me.  However tonight was the night with the camera precariously balanced on the barrier with only the baby Manfrotto and me gingerly trying to add extra support without a) dropping the camera and b) moving it during the long exposure.  This was the one and only shot as I thought I best not push my luck too far.  As it happens I'm rather pleased with it as it turned out better than I hoped.
*back-blipped*