Premise: Rosa Thumbnails

So I've been trying to work out what Rosa will look like, these are my first drawings of her, I'm thinking she looks a bit glam (which she shouldn't) mainly because of her hair, I'm not sure how I can show she has curly hair without it looking like glam? The left two thumbnails below have different body shapes, the left is more square where as the middle/right is more rounded, because Rosa is an adult I thought it would be better to construct her of more rounded lines/shapes, the face on the right thumbnail is more to Rosa's character.