Good job for a first time! I'm definitely not a pro, but here's a couple ideas.
#1: I would have rotated her a little more towards you & add more fill, so you can reduce the highlighting on the left side of her face. Or shoot with some more clouds or something to soften the light.
#2: nice pose (except her leg could be thinned a little bit); same idea about the lighting.
#3: nice pose; some more fill; blowing hair; green strap is distracting
#4: really nice, maybe a little more fill, but nice pose & soft light. Maybe she could work on a better smile though.
#5: her pose seems to be a bit unsteady & there’s some hair in her face. . Nice tones & even light.
#6: to much backlight & not enough fill. If you were to put the sun right behind her head, or peeking out a little, if would help. Some OCF / fill flash / reflector would help a lot also.
#7: I like it, there’s some hair blowing in her face & the strap is distracting. some more fill & dialing down the exposure would help with the overexposed part of her face.
-John