Thanks!

With fuselage closed, seam filled with CA glue and cleaned, I started to solve the windows. First I wanted to replace decal curtains with some 3D representation, but I realised that it was painted even in real. Continuing with decals, there was no white on it and was needed to be painted by hand.
My procedure: I placed decals from inside with front face out. painted white and then used oil paints to represent shades from inside the windows. Complete windows were glued to fuselage and masked.
Wings fall perfectly to their places. Not glued yet.