Hi,
here is another photo and the related text from
http://mig3.sovietwarplanes.com/il-2/il2-camo/il-2m3/il2m3-camo.htmImage of planes of 655 ShAP / 136 Gv.ShAP . The most important characteristics are the wide white bands around both wings, typical of this unit; the planes show often a white tip of the spinner too.
Another plane of this unit is known to have a light spinner with two dark thin lines on it.
These planes of these photos looks built in Z.18 because of the flushed gun fairing and light rudder.
Below, pilot Ya.A. Korovin (left) and his gunner in front of the line.
Thanks to V. Timoshenko for his help.
The plane of the other photo is from the same unit, but is built in Z.1 instead of Z.18.
Looking at the blurried photo of the spinner of n.5, I can't fully exclude that it was painted in the same way of the other plane.
Regards
Massimo