I honestly think the first shot could of been in focus better, and maybe shot at a slower shutter speed.
#2. Out of focus or motion blur?
#3 I wish you had gotten in closer to the flower, and that white thing in the background distracts me.
#4 I would crop the left side just shy of the center to where the pink starts out, and crop the right side about 3/4-1" off.
#5 people are too centered for me, and like Frog said, too bad the legs were cut off.