Took me ages to find a single escalator, on its own, with cool lights and then find a gap in the traffic flow to take a shot (apparently escalators aren't very easy to find over a google search, so we ended up with trial and error) - but with all night and the whole of London to explore we found one eventually!
Taken as a blend of a short exposure (to make sure that she was sharp) and a long exposure to get the light trails around her.
Worth the effort. Congrats.
Thank you, much appreciated:)