Hi Oleg,
Good job! Apart from goodies like pleasant trees and grass (the more the better of course

), please pay great attention to the invisible yet fundamental parts, like DM and weapon modeling.
The Il2 history shows us that unfortunately the original flaws and mistakes of machine guns modeling or certain planes' damage model made their way until nowadays, probably with copy-paste from patch to patch.
You can always add later a tree or a spring flower ...
Respectfully,
Insuber