There are so many things saying like her hair is actually lighter or she's paler, not negative comments just saying it, hey guys it's called shading, she's sitting near a waterfall, chances are, she's in the shadow of a large cliff or mountain.
...What? I have no idea what you're talking about. Do you know what makes something symmetrical? The swords in both links you gave me, as well as the one in this deviation fit the definition of symmetrical.