a couple of shots i like from some of my past shoots. definitely still need so much more practice. lighting and positions is what i have the most trouble with
I think gal #1 was your best model, she has a very clean fresh face. Maybe if she smiles a little more next time then you could get some pretty shots, but I personally think the no expression works.
Things I would look at. In 1 and 7, when you center someone in the frame in a symmetrical background, make sure that both the model and YOURSELF are perfectly centered and symmetrical, you were slightly off center in both shots. In Number 6, looks like all available light, if would have benefited from a reflector to soften but NOT eliminate the shadows on her face
Light in 1 & 2 is plesant but lacks a little punch, too flat, but pleasant
I like the ones of the girl in the stockings alot. She has great attitude in her shots. The last one reminds me of a cheesy senior portrait. I say avoid train tracks like a plague.
Overall, the lighting is pretty flat on the models for my tastes. No numbers on the photos but 1 wasn't flat, but it was in direct sunlight with really hard, harsh, unflattering shadows.