Polynesian skin is slightly more darker from that of the proper Mediterranean people, Atlanteans are basically the descendants of the ancient Greeks. Ancient Greeks themselves descended from the middle east. Therefore Momoa is a good choice from that point. After all he's half polynesian. The Fact that in the comics Aquaman has blonde hair, it does not mean it has to be so. Most movie goers don't read the comics and don't know that AM is a badass, for many he WAS the silly character of super friends Version. Therefore a change was BADLY needed. Besides, If one has to stick to the comics, any aquaman sequel movie is screwed before its even filmed. One of the main problems with the Aquaman comics, is that it contradicts itself at every turn. First you have Arthur who wants to be Atlantean, than he tires and wants to live on the surface with Mera, yet he goes back to Atlantis to be king once again, leaves Mera alone on the surface, she rejoins him, again he walks out on Atlantis, but this time Mera stays as Queen. It is stated that he is unacceptable to Atlanteans because he's a half breed, while its ok for them to have a hated xebellian enemy as a ruler. Come on its all mixed up. AM comics has serious flaws, sticking to it would have hampered the movie just as it can to any future sequel. As you say, Momoa worked mainly because he was playing himself, any other actor would have been portrayed as the traditional AM, with the bad UNDESERVED reputation of AM, it would have turned to be a failure. I have been a fan of AM all my life and honestly at times it has been hard to follow the comic version, especially when it had the potential of really being great, it was always dissipated. Just take The current comic issue, It's messed up pretty bad. Hope any future AM movies don't follow the comic version or it will throw away the success it achieved.