Was the session some punishment or result of a lost bet? She looks like she wanted to kill you :D
Also the highlights are blown out and in the last shot the foot shouldn´t be cut. But in general they´re not bad, I think that next time it could be more or less flawless.
Apart from the stare (which might be from rough concrete and cold water downbelow) :) I like the subject .
Now these are my opinions only and I am no expert so with the in mind…
In 1 and 2 to me because of the contrast beteen the white dress and the background it might have been better trying the black dress here or just exposing so the dress and face where better exposed and let the background be dark spot meter for this maybe on the face and use the settings for a manual exposure.
Aslo in 2 as the bum looks lower than the feet this can be an uncomfortable pose maybe the other way round?
In 3 the contrast is high which makes the rocks look great but might be a bit harsh on the face i think a reflector here to fill the left side of the face would have helped but that requires a helper and a reflector :)