Kinda like #1. Its the only one where the blue pants work at all but the head of the guitar is very close to the edge of the frame. Dont like #2. Too manly of a pose for her. She just isnt pulling it off. #3 is all wrong for her. Space seems very formal but she does not, at all.
One thing I want to stress that is when you do a shoot clothing is very key to the final outcome. Her outfit is not working well here. No make up and her hair is messy. With a little finessing and some proper wardrobe changes this could have been really nice. She is rather decent looking but she looks homely here.