Hi,
perhaps I am a bit obsessed by this plane, I feel that he's an important pilot and I would like to understand how to draw his mount.
A further version of the photo is at
http://soviet-aces-1936-53.ru/abc/l/lavrinen3.jpgTo my eye, it looks the clearest version.
I think to see the small round of the La-7 logo, a vertical black thing that could be a defect of the photo, and light and dark parts that are compatible with a camouflaged nose.
So it seems that, at least at first, his plane hadn't a red nose nor a personal emblem.
Probably it received the red nose (front ring only) in a second time as the plane of Amet-Khan, but I can't know if he adopted any personal emblem.
I wonder if the author of this article can be contacted to ask for a partial high-resolution scan of the cowling.
Regards
Massimo