I really like that one, Yvonne.
There is an easy way to fix that car though. You did stacked stars, not single exposure, right? Just pick a foreground from one of the stacks you like better. Then go into photoshop, throw that one in a layer behind the image above. Now grab your eraser with a feathered edge and probably at partial opacity and start 'painting in' the foreground that turned out better. It's one of the wonderful convenient things about stacking stars, you have a wide variety of foreground options to choose from.