I've always had a bit of a thing for photography, so can I share some tips?
Composition - try and set up your shot so the background doesn't take away from the subject - in this case the tree and the shed. If you want the car to stand out, choose your background accordingly.

There's also a general "rule of thirds" to assist in composing interesting photos - see link http://photoinf.com/General/KODAK/guidelines_for_better_photographic_composition_rule_of_thirds.html
Here too - great detail in the car, but the guard rail behind is so stark it becomes dominating.

Lighting - a lot of the photos look like they have used fill flash, which washes out the foreground, and loses the background. Try and play around with shutter speeds across the range - and if you can, set your exposure long enough that you pick up natural/ambient light, rather than fill flash. A bit like this one looks like it has done:

See here for instance

- your background is well lit, foreground not so, but you have used longer exposure which gives a sense of movement to the people in the background - would have been a great shot if you could have had them blur even more, and if you didn't have a tree growing out of your bonnet.
