Very nice. I have a 100 questions but I have to refrain myself.
You didn't explain where the history of the German aircraft came from. How do you know it was from a downed Fokker D-VII? The Austrians flew some wild lozenge schemes that were odd shapes.
The pattern is printed in the fabric. But can you tell if the Cross was painted onto the fabrice? That is what I'm seeing in your photos.