Cilla’s concept has come a long way. She started off like this and I’ve taken inspriation from Kazumi from Tokyo Ghost and Ally from Sunstone.
Cilla is the no-nonsense Guardian Angel for Maximillian Reily. She’s unmatched with a blade and wields it with deadly precision. For tougher foes, she uses the charms on her belt for diversions and empowerments. As Max’s Guardian Angel, her overall strength is inverse to her client’s health making her faster/stronger/deadlier when Max’s life is threatened.
Banana Scoop 
You drew it yourself?
Looks cool.