So I'm trying to install this bumblebee stripe on my 68 Dart, but it seems to me that things aren't lineing up right between the trunk piece and the side pieces.

Trunk piece is installed.
Trying to line up the side pieces basically straight up and down, but where it wraps over the top to connect to the trunk piece, it angles backwards a few degrees to meet the trunk piece, see the pics.
Is this correct ? or should it go straight across the top from one fender top to the other ?