I didn't really read into the whole entire thing, and what I'm about to say might seem stupid but it is a point worth making.
The orange peel on the bumper seems fine from here, and just fyi bumpers ALWAYS have more orange peel than the rest of the car. Another fun fact, bumpers usually are slightly off in color as well. Most people never notice this, however. And you won't, because your car is black
Hope you get this sorted out.