Hello Andreas,Thanks for your feedback -- you may be correct about the lilac: I improvised/speculated (always a minefield) using the photos and inferring from Jasta 5 stippling effects (e.g. on Gontermann's aircraft). Of course that could be problematic! But photos of Boelcke's machine clearly show that the lower wing (and rudder) was modified with some sort of stippling technique, perhaps done in the field. Maybe I should have done it with more light/dark green?Best wishes,Jason