Lighting is flat, somewhat overexposed and the tones are a little warm. Besides that, they're halfway decent.
You need to either soften the light or move the position because it's creating harsh shadows that distract.
1. Although it's overexposed, I think you were going for a high key kind of look. I still think it was cropped a little weird.
2. Is overexposed, too orange and you need a reflector or a second light because that back arm is getting lost. Maybe position her a little farther from the seamless to get rid of that light gradient. Unless you want that there.
3. Needs a contrast boost, and rim light is way too overexposed. I like the pose though.
4. I like, besides that gradient again. If you're going to do a gradient stand the model farther and hide a small flash behind her pointing towards the seamless so you have a nice, even gradient.
5. Is decent, don't like the cutting off of the chair. Tighter crop might work better on this one.
6. It's a shame a little bit more of her left eye didn't show. The rim lighting that barely shows up on her elbow would have made that picture perfect if it ran across her entire back arm. Like the lighting, again...that gradient.
7. Hard shadows work behind the subject, not in front. Decent picture.
8. Is good, except her feet looking like they have gangrene. Don't get me wrong...one light scenarios where light fades off and creates a nice dramatic effect is a common method. But it needs to be subtle. Your light, just kinda falls off.
9. See above.
Just my two cents. Good **** though, keep it up! The best photographer is one that nitpicks!
*** I just saw you're equipment....It upped the anti. That's more than good for some vivitar's.