Hi,
as for the two-colour banded airframe in photo, I bought a coloured print from the late great Dan-San a few years ago (then intending to build the Avia kit) and it is E.V 137/18 of Vzfw. Karl Scharon, 2 Marine Feld Jagdstaffel, Jabbecke Airfield, August 1918. He shows it with 4-colour lozenge on fuselage, yellow cowling, wheel discs, horizontal tail surfaces, and S marking on fuselage sides and dorsum. Upper wing with olive green and reddish brown bands (from left to right: brown, olive, brown, olive), lower with light blue and purple in similar relationship (purple, blue, purple, blue). Rudder and fin white with latter with yellow vertical stripes.
Cheers
GrahamB
P.S. the stripe pattern on the fin according to D-S seems at odds with the photo though.