Hi Frank,
many thanks for your reply and especially for the link to your superb build. Your choice of colours and reasoning behind that choice makes absolute sense to me.
Let me say first and foremost that I am no researcher: I am a model builder and a historian only thanks to the efforts of those who are researchers.
But it seemed (to me) unlikely that the upper wing surface would contain a brown tone for the very reason of mis-identification of the E.V, which was of course a new type in service and therefore unfamiliar, as an Allied aeroplane. That and the fact that previously German aeroplanes had been coloured green and mauve on their upper surfaces.
I believe I'm correct in saying that where painted, the under-surfaces of German aeroplanes were finished a single tone pale blue.
So it also seemed (to me) that given the stringencies of the late war period that a two-tone undersurface scheme would be unlikely. Also, the mauve on the undersurfaces appears to be a very bright shade whereas I would have thought that it would have been more of a tonal match to the undersurface lozenge on the bottom of the fuselage.
But as I say, I am merely a model builder and no researcher, and bow to the knowledge of those who are!
Thanks again and kind regards,
Mark