I tinkered with Nino a bit to try and fix the face:
I made the lightest color of her yellow shirt white so she could have white in her eyes (common among FE6 portraits, and her eyes are big enough for lack of white to be noticeable), so whether you want to keep that or revert it back is your call. Also tried to give her some lady-lips to make her look more mature, but not sure how effective that ends up being.
The nose should be shaded less as you go up the bridge and more as you get down to the bottom. Here's a diagram-thing that I thought might be useful:
Light maroon: the near side of the face, which usually includes the part of the nose that sticks out.
Dark maroon: on the far side of the face, but still shaded lightly because of the way the light hits it. It travels in a kind of arc from the top of the bridge of the nose to the side of the head.
Purple: The far side of the face that is shaded darker because of the shadow cast by the nose.