from the top floor of a classic London bus
and it's in front of the entrance to Hyde Park.
The photo was taken from behind the bus window, so it's not perfectly clear, but I did my best
you can click on the photo in order to see the image in full screen
The photo was edited in GIMP
Below i'm attaching the original photo
and the steps during the procedure
original photo
At first the image gets Black and White in total
And later with a specific GIMP tool I reveal the color in the specific area
As a final step i crop the image a little bit to move away unnecessary parts
straighten and raise a little the intense to get the final result