@kai
What shade of red are her eyes?
What kind of scars?
I would add more mannerisms for different emotions
Definitely add more flaws. Is she too outspoken? Hot headed? Pessimistic?
Any other hobbies? Or does she just steal all the time?
Why are the royals wrong?
Big knife? Small knife?
She is slightly Mary-sueish. I would add more distinctive features to make her stand out from other ‘troubled knife wielders’
Good start! I would start to elaborate more on her personality and flesh out her backstory and motives.