1 over exposed and too centered. Read up on "rule of thirds".
2 crop out the arm that made it into your photo. Then crop more of the photo to more tightly focus in on the subject. The exposure is good, though.
3 find a more interesting subject
Also, the branches are distracting.
4 over exposed. Too centered. See #1
5 Technically the best of the bunch. Maybe a bit over exposed.