first off, the color is too dark, it hides details, try dodging the highlights...
also, theres still some red at the bottom of the front bumper, and your car is oversaturated
the other car parts, headlights, windshield, tires, etc.
should all have a dark hint to them the blue stands out too much
the window thingy he means is the window support on the back of the door, i think...
(nobody can really understand what he says....
)