I like these...
#1 is an interesting effect shot, but the moons is a bit bright. I do like it though
#2 plenty of detail there. The exposure is about right, but the WB looks a bit out
#3 looks slightly over exposed, the brighter surface features look a bit bright (lower right)
#4 well caught halo, only way to catch it is to blow the moon completely. Do you have a filter on the lens ? You've got some flare/reflection on the right.