Big Ben and houses of parliament Depth of Field being used creatively - I feel this gives a much better effect than having shot the image with a smaller aperture which would give a bigger focus in the image (so Big Ben in the background would have been in focus too).
Inspiration for lighting difficult spaces using a tea light. (Really good idea if you can't get thin tea lights and you don't want the candle showing through the apertures or if as in this case the base is too narrow to take a standard tea light.
I liked the very finely textured pattern. most of the shadows till now have been large, we can do some detail work too. Google Image Result for http://designyoutrust.com/wp-content/uploads/2012/08/i1a29.jpg