Once again all kevin needs to do is grow his hair out more and brush and then comb. After the months his hair will begin to change directions and begin to fold. He get his hair cut and bam waves and it would be stronger then melo and dwill.
Any black person can get waves since none of our hair is straight.
kevin needs mad products to get waves which really will require way more time to develop because he needs to use grease to develop at some point of the process, melo probably just needs to wolf and some type of olive creme or oil and he wil develop some within months, d wills waves are natrual in that picture without any products.
your hair is much more easier to manage and curl up if your hair is naturally curly or straight then your averege tennis ball head nikka.