1. I like the lighting on the Car, not so much on the background, kinda make the car blend in. (I liked

)
2. You light was either to direct or to close to the car. But background was not lite, so I know this would have worked on #1.
3. To Bright. So, More Contrast or little less light. makes the picture to busy.. Nothing really POPS Out!
4. Love the red Contrast Lighting... And good angle & light on the car. ( My Fav

)
5. That white background lighting is Killing me. & you umbrella is was to obvious in the tail light.
6. Again to much light & not enough contrast.. Makes the picture to busy & next time try to hide some of the excess stuff like the Audio input cable in the front of the stereo & the magazine on the passenger floor board & the headrest covers are to lite.
Hope I wasn't to hard on you.
#4 is the Best