Earth is a mess. He has been down in the dumps for a while, not that he was ever a super cheerful guy. He doesn't take good care of himself and is done with everyone's shit. Impatient and acid, he can be a pessimistic jerk sometimes. He has a passion for photography and nature, but hasn't been able to focus on these recently. He cares a lot about his sister, since their parents aren't around, leaving him to raise her for a while. Had a nasty breakup with Sun and absolutely hates him for what he did. Still, he is very loyal and protective of the ones he cares about. 

His voice should sound tired and somewhat grumpy sometimes.