Master piece, highest quality,
Create a woman from a demonic sect.
The character looks like she is in her early twenties. She is beautiful, and flexible.
She has a black ponytail and an arrogant expression.
She holds a one-handed sword that is dripping with blood in his right hand.
Her outer robe is black, and her inner robe is dark red. 
Her eyes are dark. Detailed face. 
The character is absolutely insane, evil, and calculating.
The background is a dark cave.