Not bad.
I especially like:
http://i16.photobucket.com/albums/b2...d/101_0003.jpg http://i16.photobucket.com/albums/b2...d/101_0025.jpg http://i16.photobucket.com/albums/b2...d/101_0038.jpg
Though personally, I would've done them a bit different. Not trying to bash you here, just giving an opinion.
The one with your car and the really green grass and trees:
Take the shot more from a driver's side angle, limiting the view of the road and getting more of the green background, trees, etc. Plus I probably would've taken the shot from a much lower angle, like 0 to 6" off the ground, just to get a different perspective, maybe even get some sky in the picture.
The one by the fence:
Zoom out a bit, do a vertically-oriented crop. Show more of the cliff-like backdrop and crop off the bottom grassy part a bit. Keep the fence, the shadow effects are cool.
The "Saturn Twin Cam" emblem pic:
Perfect shot, though I would've used the macro to get the focus close enough to clear up the Saturn logo, but slowly fade out the far end of Cam/Valve writing. Awesome view though, I like the angle.
All-in-all, I like your style. What kind of camera setup were you using?