Wow. That is killer TdeV! The quality is of your work is just awesome!
My only (minor) suggestion would be that something could change with the rear of the beltline - it ends too... quietly. How's that for designer speak? Hahaha.
I was thinking that perhaps starting near the rear of the rear door you could slightly
swoop up the beltline along with the windowline (also giving a little bit more of a square shape to the top of the door if you know what I mean). That's just my uneducated opinion, but I hope you can follow that long winded explanation! lol