Lovely model!
#1 is fairly "static", both in pose and in lighting. She appears somewhat tense, as her hands are making "girl fists". I wish you had lowered the camera position some, and framed lower, to include her knees.
#2 is superb! if only a little over-exposed on her face. Nice pose, good framing (a little too high camera position)
#3 I can't tell the focus on my computer, but to me, this should have been vertical format, and include more of her hair and torso. If framing tightly, you can cut the frame just above her bust line with no harm, but this is too tight. Also, I like her pose, but you have framed too much empty space to the right, and cropped her hair on the left. A little balance is called for here.