Night Vs Depth of Field

[beedee]

Hi all,

Here's a complex one..

This is on the corner of Rundle Street and Pulteney Street Adelaide, just prior to Christmas. My wallet on top of the traffic signal box is my tripod, and I believe it was set to about f8 on a multi-second exposure..

Am not sure whether its focus a problem or just colour spectrum reaction is the 'problem', as it look like its out of focus..

Appreciate your comments and thoughts.