Love the comp of #1 and that little building totally makes the shot!
2. The wings being cut in the shot bothers me (course that's just my opinion)
3. Because the tail is out of focus (or at least that is how it seems to me) it almost looks over-saturated. That being said it is my favorite shot of the bunch because of the colors on the ground. It really is a spectacular shot!
4. Great shot, however because of the colors below and on the horizon, the background almost looks washed out. I would have liked to see more of what's below the plane in my personal opinion from an angle above where you were.