Hi,
a new drawing (noo... one again?) of a plane thought to have been flown by Stepanyan
http://mig3.sovietwarplanes.com/il-2/il2-camo/il2-late1941/il2-sp-fl-amv-3view-col-z18-10stepanyan.jpgN.G.Stepanyan, 57 PShAP of Red Banner Baltic Fleet (KBF) at the Leningrad airport in November 1941.
http://www.warheroes.ru/hero/hero.asp?Hero_id=263Around him, G.S.Nelson and Potapov.
Below, an image of his plane n.10. This seem built in Z.18 around September 1941. It has a wooden fuselage (but we see a repair close to the star fixed by small nails), unusually large red stars with white outlines and a sharp camouflage with an horizontal band on its tail. The canopy is likely of the early style.
Regards
Massimo