A fascinating pair of shots John............the metal trees seem to have been nicely constructed and and are very colourful.

My view is that having seen the myriad of signs, traffic lights, wires, poles, etc that you see overhead in London (most of which you seem to have photographed).............is there really a need to clutter up the space even more?

Like you I would have preferred to see some real trees. Maybe the metal ones should have a park of their own?