I like the second and the last shot.
The colors look good, but it's night here so maybe tomorrow they will seem too dark, I don't know ;D
On the first shot, you should have taken a more interesting angle of view. Also, the textures on the plane are blurry, check your settings

Third shot is cool but shows too much of the blurry terrain. Perhaps you could look just bit more up, in order to show only the mountains at the bottom of the screen. In this way, the blurry ground textures would not be a problem anymore. As an alternative, get closer to the plane and zoom out a bit. The scenery will look more detailled, and the ground textures will look more crisp.