Thanks Rick, I painted this evening. Using Tamiya Dark Green for the sidewalls and then Tamiya Olive Green for the "visible" bits. I was trying to get a tonal difference, like a "sun faded" situation.
The kit is 1/72 so once the canopy goes on, most will be unfortunately lost.
I have cut out the masks completely now. They are like a paper lace. I believe it is commonly known that camouflage was field applied, but was there any sort of standard or recomended pattern? I am affraid that since I drew these masks free hand I may be bordering on an almost "what if" sort of affair.