Pretty model!
The first two don't work for me because of the eyes -- looks like an overdone eyeglow effect. If so, try toning it down to about 25% of what you did. I like the pose in 1 a lot though. I also like the pose in 3, but the eyes look soft on my monitor and I like nice sharp eyes. (Could be a jpeg/web thing, or missed focus?) In 4 it looks like the pillow behind the model is what's in focus? I also find the bookcase a distraction in that image and would move it out of the way for the next shoot. Again, I would make sure the eyes were sharp; maybe use a wider aperture, perfect focus on eyes, and let everything else fade to oof.
IMO, 1 is your winner if you can tone down the eyeglow.
Cheers,