Modeling Aircraft Windshield?

I am trying to model an aircraft in Blender but cannot model the windshield without defects. I was wondering if someone could advise me as to the best approach to cut the windows.

Windshield
Windshield_1

they dont need to be perfect, you can add a frame. Alternatively you could also have a smooth surface underneath as a separate mesh and shrink wrap it on to it after the subdivsurface modifier.

otherwise you’d have to model it with proper topology to avoid the pinching, which is a bit harder to explain as it depends on the model. Id have to play around with it a bit in order to advice you properly.

Thanks. Would my workflow go from creating a duplicate, modify the duplicate and then shrink wrap it to the original?