Upload & Sell: On
You got some nice star shots. #2 is my favorite. I also like #3 though I wish the peoples faces weren't blown out so much, though in those conditions, it's hard. What I would have done is taken 1 shot where you exposed for the light coming off the campfire, and then blend that into this shot that is exposed for the stars.
In general, I would say adding more contrast to all of the star shots would be helpful, again though you would need a layer mask to be able to adjust the stars by themselves.
Please note that there is a 4 photo limit in the Landscape Forum, and if you had adhered to that, I wouldn't have had to see #6. Now I am sure that is a very nice kid, but there is something about that in your face smile on that one that is a bit scary...