[lolyton]

I quite like the simplicity of the shots. The first one, i'm going against the grain here and would say take a fraction off the bottom and the left side then add a little saturation particularly to the sky (if you know anything about masks and gradients then should be easy to add to the sky and a lttle to the ground).
The second, just needs a little more punch, i would try and get a little more contrast into it, also highlighting the American flag would help to denote where it was taken.