[vntgspd]

I'd would say that if you are going to run the black into the doors, continue it along the door tops then follow the radius up into the fiberglass(?) panel over the rear side windows. This would make the greenhouse appear longer and the C pillar look thin. Might give it a more sleek appearance.

I might also consider a thinner orange stripe (bring the silver up higher) but I realize you are following the body contour with the colors right now.

Have fun with it!