It could just be the way she's smiles (in each picture shown above she smiles differently) which results in different tension on her face. But she admitted to injecting a filler to her nose or something like that which is a temporary procedure, so it could be that wearing out.
EDIT: It could also be the angle of her face to the camera. Furthermore you shouldn't be disappointed or look down on Hara because of this. No one is perfect, some people naturally have uneven eyelids or a crooked nose. Hara is as much human as you, she can't be perfect.