Well being and avid amatuer photographer I will give my two cents on this...
You have some raw talent but you need to exploit a knowledge base. Have you ever taken some classes in the basics of photgraphy or read a basic book?
You have some really good ideas that would be EXCELLENT if you cn execute them to the fullest.
What I am refering to is the trap that you get into with One angle shots... Explore what you can do with up high as well as down low. I understand that these aren't all of your pics but they definitely are your favorites right? Don't be afraid to take a weird pose or angle to get an original shot... I have gotten plenty of strange looks from people while I am shooting! LOL!
Also you need to study and prepare for you lighting, which even PROS have trouble mastering. The sunsetting over the back of the cars is well placed, hiding the direct light behind the cars, but you get a darkened sense of the cars which loses their true colors. And the shots with the sun/source of light in the pic causes a nasty wash out effect with everything else causing graininess (sp?)
I don't know how serious you are and I could have just over analyzed the hell out an enthusist, but no offense was intended.
What gear are you shooting with?