All models... i really need help!?

i was down town yesterday and a woman introduced herself and i kno for a fact she isn't a scammer, she has a modeling school and was formally a world famous supermodel. her name is judy welch. anyways she introduced herself and asked if i had ever done any modeling and asked if i was interested and she gave me her email and asked me to send her any pictures for like a portfolio or something. but i don't know what type of pictures i should send her. i have never done anything like this so i really don't know. if you have similar experiences that would help A LOT. thanks in advance!