I wouldn't say that they have a small number of saudi/dark looking individuals. Especially amongst palestinians and jordaniansIdk what south levantines and north levantines are, but i can tell you this about levantines in general(palestinians, lebanese and jordanians + maybe also syrians):
They look like a cross between coastal berbers and kurds, with some really euro-american looking people(like english/scandi mix, but that looks distinctly euro-american at the same time) and a small numbers of dark, saudi looking folks