Hey Clint, you might want to tone done the automatic shading techniques. It looks like you lost control of that panel with the swastika on it; like it's a quarter inch armor applique. That metal is looking pretty thin to me on real planes. Do you have photos of that part of the recovered plane?

You might want to work on your red markings too. The white and black markings look good but the red stuff looks like red markup, it doesn't look like it's part of the tail surface. Or IMHO it does. Probably lightening or darkening and desaturation will fix that.
Fun details though, it must be fun working all that stuff out