Thank you for the critics and I sorry for my bad English. I can read it well, but I write it with difficulty.
Reviewing the drawing, I have seen that there were errors in the cabin. In terms of shadowing, was of five tones (two dark, clear and shiny) but that it was prepared for another type of shading with gradations, which is not supported in Shipbucket (it's for DeviantArt).
I have modified the shadowing and I've also corrected some small errors.
AISA I-115
Nord 1101 Noralpha (Me 208 built in France).
Thanks