1. Very cool! I like it a lot. The pilot is a bit high on the approach, but I don't blame him in this kind of weather...

2. It doesn't work for me. It's too blue and the plane is too dark. The string of clouds in the background looks a bit weird too.
3. Interesting shot. One major issue is the composition. Next time, try to bring the tail closer to the edge than the nose. Also, there are two lines in your picture, the aircraft and the horizon. They are both running straight trough the middle of the picture. However, a picture looks nice when your eyes can follow some diagonal line in it. So if you could just tilt one or both lines 45