This is about 32 hours of work and most of the more intricate details have been filled in now. Maybe I can maybe loosen up now. First though I need to revisit the site again. and take a another look at the right lower corner. Every time I visit it's obscured by several cars, so I'll have to make a more concerted study and make some educated guesses to get a better represntation.
One of the real issues I found with painting this is the perspective and how it works. With a camera you take a photo and you get a fixed point whereas, originally drawing this from life, the point of perspective moves when my eyes move across to look at a different part of the building.