Sorry Mastone, I thought Id replied here...thankyou..
I thought I'd post this link....this is the painting set up as a projection in Maya, with an animated camera move. Am working on this at the moment to add some more stuff, animated trees, some moving mist, smoke from the building's chimney etc.
I have also just signed up for Jeremy Birn's lighting and rendering workshop on CG society, same format, 8 weeks. Looking forward to it.