Hi Dan!
As a plastic modeller I may only say "congratulations" to modeller that build paper models, in my opinion this kind of modelling is more difficult than mine.
Second, as italian, I'm really happy when someone decide to realize one of our subjects.
Unlucky, as italian too, I'm really sad when I see my mother tongue used in that way.
I explain: in our language, "ICH SON AVE" means nothing. In fact, on the sides of Arcidiacono's M.5 was written "I CASI SONO DUE", that means "There are two cases", that means that in the aerial fighting "Sure one of us will fall down" or, more simply, "Me or you".
The error in presenting this machine was made first in the plastic 1/48 kit made by Fly, and your paper model seems really a copy of it.
I have doubts too about the green on the upper surfaces of the bow.
So, if you want to decide to completing the model in that way, I say "congratulations" again, because of the high level of your work.
There is a color profile made many years ago by Bob Pearson that it was more realistic.
Greetings,
Roberto