The first image looks like a cracking location. Love the lighting, especially on the hair.
Hope you don't mind a few suggestions....
Try cropping it so that Hanna's head is not dead square in the middle of the image. Had she been looking straight to the camera I feel it would have been a stronger image. Keep wondering what she is looking at. Be careful too with arms and hands. We are taught to read from left to right and from top to bottom....her arms tend to draw the viewer away from her face to the bottom of the image.
The second image and the "tree"!
I'd crop the image above the elbows as the posing of the hands are a bit distracting. Have you tried this in Black and white or Sepia?
A wee touch of flash or a bit of light reflected back into Hanna's face would brighten her eyes.
I know it's far easier to critisise that it is to take the shot in the first place. There is nothing "wrong" with your portraits and I'm sure the both of you are really pleased with the results
