1 needs more fill in face (photographer's job), clean up shots PP before you post them (Post Producers job), the floor is dirty. 2 you could style your hair between shots if you want the composition to be more clean (i understand this can take away from the "in the moment" capture, but it can be a healthy compromise at times if you can strike a pose, then style, then get back in the mood and begin shooting again) 3 and 4 require more post production. Do you know much about Photoshop, models can learn too, it isn't hard? Hope i have been constructive. I am not in any way trying to make you feel bad about these images, they are strong, but we can always improve.