Found a pic of 3GD from closer up, looks to be silt causing the discoloration
Still probably failing though
Is November 5, 2013 viable?
Some lady with a blog posted Nov 15, 2013
Visited on Guy Fawkes night
7pm on a Tuesday
Both the eye and the building behind it are cast in blue, same as traffic pic
https://angieaway.com/2013/11/15/guy-fawkes-london-protests/