I skimmed the entire rear video and could not find a shot of it that wasn't way too close to tell what the bumper even looks like.
Maybe that shot was in there and I just didn't see it.
I think this would be a great video if it was done with someone else holding the camera 10 feet away instead of a gopro on your head.
I appreciate the work you put into making it. Just wanted to make suggestions that might make your next video better.
One thing- it is universal standard practice to bake powder coat masking in the oven and leave it on until assembly time. Premium products will prep those areas better- make them ready for assembly, but you bought what amounts to very low cost bumpers that cost a fortune in shipping and tariffs so it doesn't surprise me the manufacturer left some hand work up to the installer.