I like the third shot best. Subject is not distracted with too much background blur. I think the first two have too much attention on what is behind the subject.
Looking at the second shot, my eyes were wondering off to the blurry background because there is so much of it.
The pose is better in the second shot to me, more flattering to the subject.
Just something I noticed, to me - the female subject has nice eyes and maybe should be something to focus on.