Custom Jeans: part four

I knew it was overly ambitious to get out rivets and buttons. Despite taking these jeans apart and reshaping the back pieces, I am still having the exact same fit issue as before. No one needs pants that gape away from the body at center back. There are also some unsightly horizontal folds on the side seams. I'm taking a break from these. I've been sick for a week, I am leaving town for the holiday, and I have an important holiday market coming up. Maybe in two weeks when things settle, I will have thought of the solution.