This is a roman colony, in the middle of an ocean/sea. There is a main island and some other islands. One of the other islands is also the capital. The territories are named after the roman emperors, the greek mythology or their function in this roman colony.
Not bad - the center island territories are a beast to defend.
I like the idea and appreciate the historicity of the naming (as well as the humor, e.g., "the other impassable volcano"), but the map itself lacks a Roman feel to it. I wish it had more of a defined shape or structure.