1 has a slight blur. (Use a faster shutter speed)
2 needs some noise ninja (and it's kinda dull and boring) (try using a lower ISO if you can)
3 is kinda neat, but I think the flash fired? I'm not sure...but I don't like the foreground trees being so bright.
You're on the right track though, for sure. Good first pics.
Thanks, for the comments.. Specially on #1 & 2. #2 i actually re-sized it the tree was kind of far... and i guess on the process i couldn't fix that... on 3 i like that. yeah the flash was on. I a way i wanted to capture some of the tree braches as well instead of having the moon on the center of the picture.