First Model and Car shoot

#6 is easily my favorite. None of the car or model is cut off. You could maybe even crop in more from the top and right sides to get 'closer' to the subjects.

It looks like she's wearing a rug in the 2nd one,.doesn't work for me

I will say I think you did an outstanding job in the third pic of the second set. Otherwise the other members have put some great advice out there. Great job for your first try with a model!

Im a novice in all worlds of photography so dont take my opinion to serious but...

Are you shooting the car, the model, or both?

IMO the focus seems more on the model, maybe with wider crops to incorporate the car more, apart from no. 7 im not overkeen on any of them, sorry. I also agree with the lighting, especially with the garage shots, i think if you'd worked with the natural light behind the camera the shots may have come out better, maybe im wrong (if i am please tell me, im trying to learn too).