I bought a Goodmark right fender, and was not happy.
There are 2 areeas that are not correct.
#1 the top rear (where it meets the windshield) is curved more convex, as opposed to the front top of door edge, which is curved more concave.

#2 The lower body line, just behind the wheel well opening is sloped front/downward, as opposed to stock straight line. Looks like a screwup.