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I hate it when photos are hosted on Flickr.
If anyone wants to look at the EXIF data they can't just right click on the photo here at TPF and see the data. They have to leave TPF and go to Flickr to see the EXIF information.
For someone new to photography, you're either using some advanced techniques or an automatic shooting mode. I wanted to look at the EXIF to see what shooting modes and metering modes were used, but I won't go back and forth from here to Flickr to do so.
#1 needs to be cropped so there is less sky and give the scene more of a panoramic feel.
#2 would have worked better if the camera had been in the vertical orientation. The horizontal shot has to much, not adding anything to the photo, negative space on the right.
#3 would also benefit from cropping some off the top, and I recommend cloning out the bright, distracting, speed limit sign.
#4 has that bright highlight on the right edge of the photo. You might crop the right side just enough to lose it.