Deciding to go in a more stylised cartoony direction I developed these sketches:
I tried some different hairstyles and Hood shapes. I wanted her to look a bit edgy, youthful and friendly. Working out how character could move around in the Hood was interesting. I decided on arm holes for the Hood so that drawing her in action poses would be easier because she has a few toward the end of the story.
This is the final design for Hood. I made turn-around drawings for her so that I would have reference for drawing her in different angles in different scenes of the story.