This can't possibly be the right white balance. Her hair is kinda purple.
There's a white truck in the distance (right-hand side of the photo) which you can use for white balance.
Okay, I don't know why it's making a lighter version, but I think I know a way to fix it.
Single-click on the mask thumbnail in the layers panel. Then press Cmd L to open a Levels window. Grab the middle slider and move it ALL the way to the left.