Ah beautiful work. I have a thing for WWI planes anyway, but also the colours and the tilt of the image work so nicely. the only things that bug me a bit is that the body looks a biiit flat, and I think the tail is not quite right. I think if you were going for the Pfalz it does not go up that high...just seems sort of instable that way. But these are just tiny nitpicks. Atmosphere, colours, values are spot on, I love it!
Love the realism what you done specially here...
Cheers!!!
Daniel
The contrast is fabulous.