The is the sculpture Still Water by Nic Fiddian-Green www.nicfiddiangreen.com
Loads of people walk past it all the time during the day but it's at night when it comes alive.
This picture was not taken today as the light was not right at all. I took this 2 days ago but it is what I would have taken this evening if I could have.
There is some amazing things in London that people walk past everyday and never stop and take a look. This particular sculpture you can ride past on the 73 bus. You don't need to pay £30 for a tourist sightseeing bus just a Travelcard will do. I ride past this everyday.