This Picture was Made by Bodhisattva
Background The Green Lady is a complicated woman, she or He, or they have a number of conflicting pasts that may all have actually happened because that's the sort of shenanigans you get into when you can manipulate fate.
As Best the Mask believes, or seems to believe. She is the woman who has driven him to greatness since his solar days. She is Sidereal who he believes works for his greater glory.
This may be True. She may also be the Mirror Flag, and the Ebon Dragon, and Your Character. She's complicated like that.
Personality
Yes, she has many.