From an automatic translation of Orlov:
on bomber Pe-2 old camouflage rather simply turned into a new way of painting green fields with gray-blue paint, and light brown - dark gray (except for the paint on the left side of the tail). For the Yak-6 the conversion was carried out similarly, except for one light-brown patch on the left board in the bow of the fuselage.
At the end of convergence, and new camouflage is no other aircraft resembled earlier. For the Po-2 and UT-2, the border between the dark gray and gray-blue colours formed straight angled lines that, although simplified drawing of camouflage, it was effective only at large distances of observation, when the angles smoothed drawing. However, in a period of late like on a ruler, a West European landscape camouflage may have been acquitted.
For the 1944 Scheme, it was less used in practice: they were printed and distributed to the performers, and the war in Europe came to an end, but in peacetime the need for camouflage was no longer acute, and the production of aircraft began to fall. Nevertheless in 1945 on these schemes were painted on transport planes She-2 released by plant number 47.
According to this text, in 1945 Pe-2 saw their camo transformed with overpainting of blue-grey over light brown, and dark grey over green (and of course the already existing dark grey bands). This could be a trace, but photos seem to show that the light parts were widened. So the light color, if it's really blue-grey, should have covered all light brown parts, and eventually a large amount of green and sometimez of dark grey, often saving the rudders and elevators that were fabric- covered (but why didn't they save the ailerons too, then?).
Again, A-33m oil blue-grey should be darker than AMT-11, so I would expect a darker look. Maybe it was replaced by a mix of light blue and black that appeared lighter?
And it seems that some of these photos were of late 1944, when the directive was already approved but not divulgated.
At present time, however, this looks the most reasonable explanation for many of these photos.
Any ideas?
Massimo