By the way. Looking at your friend's picture, He needs to push the insert line deep into the foam to attach the velcro. I can see a bubble on the trim poping out on the backs.

If he Pushes out the foam just beneath the shoulders out before rolling down the cover, makes them look a lot better. Its where the foam touches your lower back. The foam extends out and that portion needs to be pushed out before rolling the cover over. Otherwise, the cover will hold the foam in tight, and both side would look uneven.

I'll try to make pictures of how to install the cushion and Back step by step. The cushions looks like it was over the old one, without the hog rings, probably He was trying to have te picture in order to show a complete seat. Cushions are harder to install, because you have to have the Back frame out, then pull everything appart on the cushion, like the tracks attached to the foam PAN. Then, the cushion be detached from hog rings. To do hogs ring on cushion need to be on order to have easier. First hog ring the front panel (Horizontal strip _ the only one not IN pair), Then do the external sides, the strips tha comes in parallel pair. The Cushion foam has marks and by the foam WIRE, where the hog ring window is, Then the cover has marks by the backing foam of the cloth, called notches. This marks should match where the hog ring should be.

I'll make these instructions next week. I'll keep working on.