Definitely agree that fill light would have really helped, especially in #1 where you have the sun providing a really great rimlight on her hair. I see nothing wrong with her positioning in the frame in #1, EXCEPT that there is empty space over her head which adds little, and you barely missed having a tree growing out of her head (and I'm guessing that was just pure luck?). In #2, you definitely needed more at the bottom, but they're both a good start.