Fashion photographers have a very significant role to play in presenting outfits. It's not so much about the models as it is about the clothes. Fashion photographer will know how to work with a model to show the clothing's best attributes.
It's about the poses, the layout of the clothing and the right capture of the moment that shows your clothing in the best way possible. It's about the dance between the model and the photographer who knows how to direct the model to extract the best poses which allow the piece of fabric to look fabulous.
See the different ways this fashion photographer, Kerron presented different outfits on the same model.