Pretty good. You been playing with your different settings?
That Porsche that went by, is blurred as I'm sure you're aware. Next time, try panning the camera, and following the car. Depending on your setting, the speed of the car, and the how fast you pan, you could get a really nice motion blurred background.
Also, were you using a lens in the 3rd and 4th shots, or is that an effect added in?