Headliner Nightmare

I just looked at your pictures,did he use a heat gun when he installed your headliner?
It's really not bad it could be better though. I had to install mine twice. I have a sedan, the second time I took the rear window out. I think I would leave it as it is, unless those wrinkles bothers that much, it just depends what kind of car your building, I know it bothered me that much. That's why I did it twice.