I don't think Adley improves over the 2nd half. I think he maintains an .800ish OPS but I'm fearful that they're running him into the ground.
Mountcastle, no...well, maybe, but only because he was so awful to start the season that there's really nowhere for him to go but up. From that perspective, sure.
Gunnar, yes.
Pretty much agree with the rest of your picks, Froberto Duran.