The perched bird looks almost like a buteo to me, with the unstreaked cheeks and prominent mustache. But it fits Cooper's better than Sharp-shinned, in my opinion, since the underpart streaks are blackish rather than rufous, and the head pattern is stronger and more colorful. I also don't see the small-head no-neck look of a Sharp-shinned. I also like Cooper's for the smaller flying birds, with straight leading edges to the wings and apparently a well-projected head in the last picture.
I like the Goshawk!