Hey man, some real sweet shots in there. It's hard to say which ones as they aren't numbered. Were you using a small aperture or blurring in post processing?
1. It's alright, just not as good as some of the others.
2. I wasn't to keen on this crop, although I think it works well on the other one.
3. Nice shot. Tack sharp and good lighting. I like the d.o.f aswell.
4. Again really sharp on the front of the face and I like the depth.
5. Good lighting and sharp. Not keen on the pose or crop though.
6. Commenting purely on the technical side, looks like you tried to salvage an out of focus shot with sharpening and it looks a little rough. Not to my taste.
7. Nice shot with natural light. Has an edgy photo-journalism feel to it.
8. Sweet shot. I wouldn't change anything. Natural light again?
9. I like the crop for this shot, I think it works with the coolness and the water.
10. My fav. Cool model, great lighting, good B+W conversion and again I like the depth.
11. I'm in 2 minds about this one. I think I'd like him against a brick wall, but he's not so I can't comment on that. You could clean then marks off the wall as they don't add enough grunge to make it work. Good lighting and bold colors, which would work well against a brick wall.

12. Hard to fail with a beautiful model. I like back lighting, but maybe use a reflector to bounce some back into her or a fill flash. The lighting on her front just looks a little flat.
Of course personal critique and opinions.
Matthew