Nice shots Alex. I think they could possibly use a little photoshopping though if you want to make them more glamour model sort of looking.
Hope you don't mind but I had a paly with one of the photos. Here is the picture I edited...
And here is the edited version
I used photoshop CS2 (although ps7 can also do this)
1) Duplicate layer
2) Filter > Blur > Guassian blur (4.1pixels I used)
3) Press ctrl + u, desaturate it about -75
4) Blending options for duplicate layer, set to Hard Light and opacity to about 80% (overlay and softlight can also be good)
5) Erase out on the duplicate layer, the hair, as you don't want it dark like it makes it.
6) Flatten image (this makes 1 layer again)
7) Filter > Distort > Lens correction > Vignette about -25 and midpoint roughly +35
8) Sharpen tool, about 30% strength, make the brush smaller by pressing the [ or ] keys. Then sharpen the eyes.
9) Sponge tool, set to highlights, exposure about 15% and bring out the highlights in the hair.
Done.