Earth was a therapeutic type person, always able to cheer someone up when they needed it, or just be there to help when things got tough. But when it came down to having to sacrifice herself in an attempt to save her brother "Moon", she chose to take the risk, and the risk wasn't worth it.. Moon died anyway, and she blames herself for this. She puts on a facade that makes it seem like she's happy, but deep down.. there's self-hatred and regret for her sacrifice... her eyes are green & blue.