Gloriously moody twilight sky in this photograph – taken last year during a weekend stay in London – long(ish) exposure of 2s to allow the lights of the cars and buses to blur and get just an impression of the people walking by.
Technical Details:

Nikon D80; 2.0s;f/13@22mm (18-70mm;f/3.5-4.5;Stock lens);ISO400 – Camera mounted on Red Pod on the bridge wall – Post processing in LR5