The panning shots- they are more of technical exercises instead of photos. Since although there is a clear subject, there really is no interest. They are all blurry, but keep working on the panning.
The nightscape, it's more like a photograph but yeah it lacks a strong composition. First of all the blank sky competes with the ground, and if you look at the overall balance you've got the "horizon" running right across the middle. You might be able to improve on the composition if you were standing on the ground or at least lower down, as you would have been able to keep the moon in the shot but include more ground for interest.
Just a couple of suggestions.
Ruahrc