Yo I have seen that the comments seem to be debating just how dark skinned certain peoples in the Mediterranean are. As a Sicilian, I can tell you this manga's got it. Lieutenant Marco Antonio, while he seems to be on the extreme of the spectrum, definitely looks like a Southern Italian, meanwhile his officer seems to be from the North. It would be exciting if the mangaka nailed the dialect, but mangas about WW2 tend to be not good in fidelity so this one is already above average. Cleopatra's skin tone is definitely lighter than that of most of her people during her reign, and that's because she descended from one of the legendary Diadochii (Alexander the Great's successors), Ptolemeus, which means she's more Greek than Egyptian.