#1 shoot at a lower angle would look best (that's my opinion)

#2 you can try to have the subject facing the sunlight but make sure she dont squint her eyes due to strong sunlight

#3 i assume you take this shoot underexposed and attempt to brighten up the subject in post processing? i see some sign of editing there which is not good if you leave sign of editing

#4 you left sign of editing, near the shoulder of the model

2.1 i think tilt too much, and part of her hair is close to pure black, should give some details to the hair

2.6 overdo

2.8 her body proportion look wrong, dont know is caused by the lens or clothing

you smoothen the skin but never whiten the teeth