14 hours seems like overkill, though. Scenes like that don't really need MLT. A sun-light and amb-occ with a physical sky would make it look about the same and would take 1 minute.
Of course, I'm not bashing Indigo or yor work. I just think that if you are doing arch-vis as part of your job, you can get it done much faster.
You probably already know all that.
