So because the cabin windows are projecting fisheyes, Greg asked about hints for transport aircraft and the like. I often spray external color on the sides all around where the windows go while the fuselage halves are still separate. Then glue in the windows, join the halves, and mask both the windows and the immediate area around the side out to a panel line. Then putty, sand and paint the assembly. It's easier with airliners, mask the window stripe, We'll see here, I may not get a good match for Hemp next batch.
See if you can tell the color around the windows in this poor light shot. I shot the pieces with straight XF-57, then the window area with Morrison "Hemp".