Primrose Hill is one of the high vantage points just to the north of central London. From here you can look across Regents Park and the Zoo towards the Telecom Tower and the City to the south-east. I was experimenting with a cheap fish-eye attachment that went on the front of a 28mm lens and this was one of the results. Someone very kindly said this made them look a trees in a totally different way. Certainly the contrast between the dark branches and the bright leaves is accentuated by the fish-eye distortion, which seems to suck the centre of the tree outwards.