Montana Modeling and Photography

How do i make a portfolio to get into high school for fashion industries nyc? I really, really, really want to get into that school so bad, im so into fashion and believe i am very good at it. The only thing i think that is keeping me from this school is my lack of a portfolio, and ive heard that you need one to greatly raise your chances of acceptance. Can somebody help me by telling me what type of art they want and how many pieces and everything that a good portfolio should be. Thank You.
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