Do most models have slender faces?
Yes, most do. I think agencies are more interested in bone structure than they are in how slender your face is. I have seen models with wide faces but high cheekbones. Models with a large jaw but good facial structure that know how to work angles to their advantage. About 20 or so years ago there used to be a model that in 17 magazine that had a large face but interesting eyes and features and they used her a lot. A model does need nice facial structure, pretty or unusual features, and the know-how to make her look work for her.