''Eygpt is also close to Arabia so of course people will have similar feature as the arabs too.''

Arabs are depicted in the Rekhmire tomb and they are quite different from the Egyptians. Arabs are shown with long flowing beards and straight hair. You could argue that Egyptians painted themselves darker than Nubians,but remeber even the Egyptians in the tomb of Rameses III depict Nubians in various different shades themselves. Egyptians are always shown darker than the Kefitu,Tamhou,Syrian,and Bedway