Thanks for the update. Those soft shadows look amazing!
The weathering looks great. Is it still planned to add other layers, too, like oilstreaks, remains of the exhaust on the fuselage or wings?
One thing that I found very amazing in B17-TheMightyEighth was the effect a damaged engine had on the wings and elevators. Oil-leakes 'painted' the parts behind the leak black and a fire destroyed the skin. Considering the detail, I guess we see something similar in BoB?