Krzysiek if you like, you can paint with streaking scheme, but on yours photo, in my opinion, this plane is painted on three colors camouflage and lather was painted on streaking camouflage. Three color scheme in Polish Air Force was introduced in 1924.
First German Fokkers D VII till 380/18 was painted on streaking camouflage. Lather all planes has lozenge zcheme.
All this data I found in this book - Fokker D.VII The lethal weapon, Tomasz Kowalski Marek Ryś, by Kagero.
I found there also picture of the same airplane (530/18) staying on the nose and there is also visible streaking camouflage on lower side of wings, such painting was newer used in Germans airplanes.
I don't know if I help you.

Adam.