exceptional work !!! .... I love that color scheme in black, I fell in love with the D.1 reminds me of the racing cars of the 20-30's, and being the first aircraft in the world completely in metal to enter active service he has his page in the history of aviation, I think it will become part of my stash very soon.
I am building my first biplane and the first WnW, the Albatros D.V Manfred Von Richtofen edition and I must admit "i got the WnW Bug", everything in these kits is pure art, from the sprue to the box up to the Decal and instructions.
At the moment I have prepared the Spandau with the Mastermodel set and I am assembling and detailing the engine with the spark-plug from Taurus,PE set from HGW and a bit of scratch-building, last night I reproduced all the valve springs, my engine is the 160hp version of your Mercedes and I wanted to ask you a huge favor, if you can post or send me photos of the details of your engine, because I noticed that you have masterly made all the connections between engine and cockpit and also connections to carburetor, I know that my version is a bit different but it's still easy to understand what's different and what they have in common.
did you also use the metal exhaust pipe from REXx? .... the propeller sets with the exhaust pipe look like a work of art