#1 lacks contrast and sharpness. I like how the railings are leading the eyes to the subject, but he seems a bit to centered.
#2 kind of lacks a point of focus, and I feel like it's overblown. Also a bit to much sky?
#3 The horizon is kinda screwy, and the contrast is pretty low, making it kinda boring.
#4 I wish that the blue on the right side was less. If you could have moved to the left and got more of the crabs it could have been cool. Also wish you had gotten closer to them.
#5 Really cool concept. Looks like that bird might be flying into the storm or something. Like the framing, but if you did some PP contrasting it might help it
#6 Sky is pretty overblown obviously. The hawk is interesting though. I think it's cool that you could get so close to it.