First shoot in my studio!
I like the pose in the first one but I prefer the emotion in the second one. I suspect I'm seeing more of her true character in that one.
Were you using a softbox on the first? If not then I think you should. The light looks harsh. The hot spot on her upper lip is a real distraction in that one.
As for the second one, I think you should have shifted the frame to the left. (Placed her in the right of the frame.) And then gone on and a done a few high key shots. At the least her face needs just a little more light.
Keep up the good work and keep us posted!