Very nicely done, three great images.
The first thing for critique that caught my eye, was her hand in #1. Rarely do you want to have the back of a hand, flush to the camera in a portrait, especially for women. And in this case, it's made worse in that her hand is in an awkward position and maybe has too much pressure on it. She has a nice soft look going on, but then her hand is showing all those veins etc. As a point of comparison, the hand in #2 is much better.
Also in #1, her pose of leaning on the rail, is causing a bit of a hunch to her close shoulder...which is a pretty natural thing to do, but it tends to enlarge the arm & shoulder....and because the arm is bare skin, it has the same reflectance as her face and is thus, competing for the viewer's attention in the composition.
I like that her arm is a leaning line, taking our gaze up to her face, but I think it could have been better, if the arm & shoulder weren't under so much tension and maybe had a bit more shadowing.
I love her face in this shot though. A tight crop of her her head would still be a killer shot here.