Somewhat old thread, but here are my comments.
#1 Interesting effect with the tree blur and I can see what you saw in it, but often the viewer does not see what you saw. For me, the blur would have been better placed quite a bit lower in the pic. The girl is nicely posed and has a nice expression.
#2 Nice shot, but I would have moved to my left to get a better angle on the subject. I like the setting (fence and greenery) and the selective focus.
#3 I quite agree with the comments of
@gk fotografie and the new crop.
#4 and #5 are "up the nose" shots. The low angle is not flattering IMO and makes the chin look large. The subject does not look relaxed. The setting and lighting are nice. I agree with cgw about hair separation, and that the face looks bright (not "overexposed" unless that means bright).