I did comment on this thread yesterday and must have not hit reply or something?
My favorite of all of these is 4. I really like how they look natural here. It's well-exposed & composed nicely. I might try this one in a dramatic b&w.
I think #1 needs a bump in curves. In 2 the sky is blown. I think this one would have more impact with some color in the sky. A nice sunset or sunflare. 3 they look casual here but more like a snapshot. Color looks off. In 5 I really like the way they're holding hands in this one. A bump in curves here too.
6 is interesting. I like the way you have them standing and the bricks add interest.
In 7 she looks stiff. You have areas of overexposure here on her arm and neck/shirt. Could have used some fill flash here. It looks like a stick is growing out of his head here like he has a horn.
HTH