I really like these Dave. You've obviously put the model at ease as she looks very comfortable.
I'm no expert but I like the first as the background gives off a nice grungy feel and the second just looks a very natural portrait with great tones
So these on flickr last night and really liked them, they are both good, I'm no expert but for me the light on her face is better in the second.
They're really good.
One thing.. if they're a promo shoot what are they promoting?