Oleg, very nice update.
In the first set of shots, the RAF pilot looks like he's wearing his goggles down with no oxygen mask. By all means a pilot might have done this, but really they would have the mask and have the goggles up unless they enjoyed having their vision distorted.
I could go into more detail, but I don't want to bore the rest of the community
Of course there are loads of combinations for the way a pilot could wear their headgear, but such a set as you have posted seems very unusual to me.
I must add though that it's great to see that you've used the research I sent you for the helmet and goggles! The goggles you have moddled were only used by a few (no pun intended) RAF pilots in the battle, so although it's correct if you want to get really picky the Mark III(a) goggles would be better
I'm sorry for sounding like such an anorak; it's only a cosmetic detail, and by all means just put this at the bottom of that ever-lengthening-list.