I have to agree with Patrice on this.
1. I'd crop it TIGHT.
2. Not feeling this one at all.
3. The crop is weird, but I could like it if it had some major pop, better lighting, and no giant logo.
4. This one is gorgeous, but the logo looks like a giant necklace. It really kills the photo.
5. I kinda dig the green. It "could be" an almost "green man" type photo. But I'd like to see it even greener. But then again, that wouldn't be good for a hair ad, would it. Anyhoo, the bra strap HAS to go.
Keep at it. You, IMO, aren't ready yet, but I feel like with more practice, you could be.