The 3. Sqn. Picture has developper stains from crappy process, I would suggest from the stain it's appearant from
the roll, developper over exposed and not floating fluidly, hence a large area is bullshit.
At definite details you must have this in mind.
What is definite, the Sky was changed with the Sky blue Mix, the same colour is the Spaghetti Underpainting.
It is thus a rare complete repaint in 3. Sqn use in early Service. Very rare.
The blotches are debattable, but in the two colour range, 2 different hues.
The real outlook who knows?
The bright Blue is the early MU's alternative for Sky, brighter than Azure, even brighter than
a fresh sky. The grey and purple are subjective colours from one of 3.Sqn Veterans.
The same source describes them (other Veteran) as being greens and browns over Sky Blue.
The truth is between. Both are right under different perspective.
A grey can also lead to a Greenish Grey, which is similar to Drab Olive.
Purple can be a truely reddish Brown. Both where used by Italians,
one Verde Mimetico 2 was grey-green and they had a Marrone Mimetico 2 purple hazel.
You must have the backend at Italian colours too, since it's close to mimicry them?!
Grey purple on bright blue I took into testing:
simple b/w scale and found the contrast between grey and purple to heavy and
"different from any known 3. Sqn Spaghetti...
Definitely not seen on 3.Sqn a/c.
73 and 274 and others wore such crazy contrast Spaghettis.
Though the Sky Blue sometimes can't match, when examples had Sky Blue Blotches instead darker Brown and the underpainting was in the Light sand up to Light earth range, way darker than Sky Blue or whatever that mixed colour was.
To stretch range of possible colours, one must get to know pre war Middle East colour standards,
Malta, Aden, Palestine or Tropical Schemes.
Dark and Light Spaghetti comparison in one Picture:
I found out they could simply have changed composition, taking underpainting from the Blotches colour
to induce a darker appearance? Who knows, but definitely these where artistic and individual as hell.