I like this picture the best among the photos of Tina.
In short the composition and the mood is good.
The subject's body is pose in sharp alignment like many triangles which helps to compliment her figure..
The hand pointing towards the camera is guiding towards the subject.
The head resting on the other arm is looking away from the camera shows a good facial angle of the subject.
The facial expression of the subject also helps set the mood for the picture.
