Still not at 100%, this is what I meant :
Anyway, what I'd suggest would be not to make her
face rounder, but to make
everything rounder. Your sprite has got a lot of very straight and harsh lines. Unless you were aiming for that, I would try to soften the feel of the image by doing curves instead of angles.
Another important thing : The folds in the clothing will work better if instead of
drawing the folds directly, you
focus on the shadows that your lightsource casts on those folds. Less lines, more color.
Here is an edit that sums it up :
1. Original image
2. Softening the lines and curves
3. Focusing on the shadows
4. There was a shade of dark blue that was very similar to another, so I used the same color for both.
Other than that, I have to say I really like the character you made and the colors
