Other than what has been mentioned, here are my observations:
Front bumper is too far back - there should be plastic fillers between the fender and the front bumper. Rear taillamp housing blackout, there doesn't appear to be any speakers behind the speaker grills in the doors, non-stock steering wheel, I don't think the brite strip/camera cases finish around the instrument panel and passenger cove was available in '71, door ajar/lamp switches had dark plungers, lower panel on door panels should be carpeted (looks vinyl from the pictures), missing center trim on window cranks, hose routing in some areas of the engine compartment seems off, (were hood hinges ever painted body color?), starter solenoid should be black, missing plastic leaf guards on fenders by windshield, gas tank straps wrong color.