Sky Green, aside from a very small bio (what's he like? What does he do? I'm sure there's more to him than that.) I feel like he's missing something important.
One of the big things are powers. What can he do? Explaining what this Void Energy is would help.
Additionally, how did he get to the Void, and what did he do there? What or who is this Great Void.
In our RP, the Void is is basically another world. The laws of physics are loose, and some areas are vastly different. In my territory, the landscape is filled with floating rocks. There is a sun-like core somewhere nearby too. In Hellion's area, as far as I'm concerned, it's more like a planet, but with no vegetation. We both have our different view of the Void, but then again, we don't tend to mention the surroundings, as that's rarely been required.