I got a similar one, so diaz has black hair, wavy a lil, and if ur hair curly you can grow it out and it will become wavy, all you need is just to geow it out and put thickning products
In my case, my hair is straight and wavy, sometimes it forms curls, I've been letting it grow for 11 months, it's already reaching my chin and the sides and back are well grown, but from what I understand, Miguel's hair is layered, I believe . that I will have to cut a little with scissors and make a layered cut, to give movement to the hair