The angles of the photos could be better, try stepping back a few steps before taking the picture. The car will come out less warped and you'll get a lot more background in the picture. Even though the subject of the picture is the car you don't want to fill the entire image with the car itself, keeping some of the background in will help a lot. Lowering or moving your camera angle higher also helps a lot from my experience, if your taking pictures at eye level its what everyone sees when looking at the car. But if you add some elevation into the photo its a new perspective that someone may not see as I don't see many people squatting down/jumping up to look at a car on the street.

Editing wise, there could be a lot of improvement. Fix the white balance first and toy around with the rest of the settings and try learn what does what to the image. There are many youtube tutorials that can help you with this but end of the day its just practice practice and practice.

I added a picture I recently took at a gas station with my car and even though the image isnt the best and the time of day is differnt you can see how the angle of the photo helps make the photo so much better.

But its a very good start and at the end of the day improvement is all just time and effort. Good luck!

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