I've dirtied it up and weathered it more. I'm still not where I want it to be. Something seems to be missing. Any advise welcomed. As always comments and critiques welcomed.
Does anyone know why the edges of my A/C are choppy?
I suggest lowering panel lines opacity and/or make them a bit sharper. Look for tutorials about drawing panel lines in here.
And the jagged edges happened when you're not using anti aliasing with your VGA card. If enabled you'll get a nicer - smoother lines albeit with a quite drastic performance decrease.