Perhaps just rotoscope the back middle section of the x-wing of the gout put this under your SE rotoscoped x-wing then Luma key through blurred detail or try to sharpen in?

What is the 97 SE like? Probably not as bad I would think? Or one of the old laserdiscs?

The trees you could put the shadow detail in on your background plate perhaps again luma Keying it through the black areas with no detail? You probably need to do to separate sections because the x-wing covers the painting…

All the shadow detail will add up though there is a lot missing in the dark areas so it will be noticeable.

If you post the background plate I can try and do that but the x-wing yeah you need to find a version that has more detail than bluray

Otherwise you could find a image from a scale model or replica and track that in obvioudly Luma key again you want to keep as much the original as possible…