can't say I like the poses in the 1st and 3rd photos and the hand/arm position in 4 and 5 but the lighting is nice in all of them and 2 and 6 are great
Your off camera flash images pale far in comparison to your naturally lit images (or your OCF is very inconsistent). I think 1a/b is a great example - the hard shadows of an unflattering, diffusionless (or poorly diffused - i assume hotshoe flash on a stick?) light does not flatter your subject at all for a, whereas the gorgeous soft light, flattering angle and tones in b are high caliber work (the opt out of a bold lipstick colour doesn't hurt either). I would work on the consistency of your flash work for future images - 1b compared to 2 look like completely different photographers took them.
With the possible exception of the first two images (forehead/cheeks a touch hot) excellent lighting and what appears to be a very relaxed subject. I'd keep her number handy if you ever have the need for product or scenario model.. tks. for sharing
Wish the comments made sense. Which one is #3? No numbers, some say a & b etc.
What's the point of putting 2 together (the first two, for example?) Do you want us to look at both at the same time? Is one supposed to distract from the other? (It does).
Hope this helps.
Now that I've got that out of the way, there's some really nice work here.
The first pair of shots, left - I think the shadow could be cropped away and improve the shot. She'd be larger in the frame, which would be good.
Love the hair and sharp eyes of the first pair of shots, right side. Very nice expression too.
2nd shot - She's blending into the background and the background that would have prevented that is on our left. Black against that greenish background would have been nice.
3rd set of shots, upper. (See how a simple # would help?)
She looks great. The arm looks large, however. Maybe without the arm to the head would be even better.
Lower shot - She's very centered in this one and also very small. She's the star of the show, so she should be larger in the frame. Minimize the background when you can and maximize her.
Last shot. She has a great smile in this one. It does show her as heavier than she is, however. So not flattering.
Again, some really nice stuff. Take the comments as minor points to consider for next time.