First off, this is a great rendition of the car, but I don't think dithering works with such a smooth texture of that of a car's. But again, it's your choice really. If you do want to keep the dithering, I suggest removing, or changing the 'X' type dithering on the roof of the car, mainly because that pattern of dithering generally doesn't work wonders with anything( unless it's a large piece where it's unnoticable). But my main question is really this: done by eyes naturally, or is there a reference pic?
