Everyone needs to learn so don't take this personally especially since you say it's your first try but the other ones look too much like you read a book on poses, she didn't and it just looks unnatural..
I don't think so. In shot #1, her arm divides her body in half and her hair cuts her eye almost in half. The black watch band and the black bra strap are also visual distractions. The position of the left arm is also unnatural and awkward.
Number 2 is better but you still have the visual distractions of the black bra strap, the ring, the necklace and the purple/blue flower on the right. On a pro web site, they will tell you that jewellry is a no,no, for professional portraits. The eyes are in the dark, so postprocessing is drastically needed on this shot or fill flash or a reflector when you first shot it.
In shot 3, you still have the hair cutting one eye, the distracting black watch band, the black bra strap and the arm cutting across the body.
In Shot 4, you still have the visual distractions of the watch band, the necklace, and NOW the nails and the unruly hair on the right side. The face and the eyes also need work in post, particularly to brighten the eyes and reduce the darkness underneath. Some black sposts on the bench should be cloned out in post as well.
Portraits are a challenge for even many pros and require one heck of a lot of learning and research. Don't expect good portraits without one heck of a lot of work at it.
skieur