..really.Nothing. No extreme weather. No anecdotes of random encounters with strangers on Westminster Bridge (believe me, I've met some interesting people on that bridge at 6 o'clock in the morning, but that's a blog for another day!).

Everything just worked. The light was just right. The headlights helped balance  the composition , and as if on cue the jogger appeared in the frame,  and all the elements just slotted into place.

That's it really. Hecho!  Nada más !

Embankment ,London(shot on Samsung Galaxy S3)