Technically speaking, number one is well composed, lit, and shot. The hands in pocket pose, not working.
Number two, the angle you were standing does not flatter the subject's facial features. Additionally, although they are out of focus, the white circle and green smudge on the shirt are quite distracting.
Number three, again, nicely shot, I like that you moved to the right and the subject was not exactly in the middle of the path or trees. But the wrinkles in her pants NEED to go. Honestly, they ruin the photo for me 100%.
Number four, the main light needs to be softened drastically, it is quite harsh on the subject.
Number five, in my opinion, the subject needs more contrast away from the background. The green shirt, especially in the highlighted areas of the collar blend way too much with the trees and grass behind it.
I'm sorry if my critique is a little harsh, no disrespect intended. Overall, they are a nice series, just as we humans are, nothing is perfect.