I think this is the best of the three. That dress looks really good on her, her legs look amazing, and I like that she is barefoot too. All the wood texture around her I think adds a nice grounding and feel to it. Also like the depth of field with the blurred background too. The boots being in shot is interesting as well. Hints at there being a different side to her too with how the boots are black and kind of rugged and the dress is white and soft. Overall I think this one is very nice and she looks lovely.