#1 - The angled shot doesn't work. It appears you cut her legs off simply so you could rotate the shot. It is horribly grainy, perhaps that is some sort of affect added during post processing. The focus is not sharp. Good exposure though.
#2 - Too much contrast in the B&W conversion; her skin tones are much too dark. Horizon is not straight.
#3 - Rotation again. Cropped too tightly causing her elbow & part of her lower arm to be cut off.
#4 - Bad white balance. A vignette that doesn't do anything except cause the top of the head to be underexposed.
#5 - Slightly overexposed. Harsh light, probably from an on-camera flash. Bad white balance.
#1 - #5 - In each one the subject is perfectly centered. Read up on the rules of composition, especially the Rule of Thirds. Learn where to crop limbs in photographs, there are compositional rules to that as well. Learn to use affects such as grain, soft focus, and rotation to enhance a photograph not to just throw them in when they aren't needed or detract from the shot.