I would say you mischaracterize Nicole abit in the first chapter. You make her seem nicer than she actually is when you write about her in exposition. But when you actually write her she's a lot less nice than the exposition would lead readers to believe. 

Sure she has her "nice" moments, but they're sprinkled among many more instances of her being evil for no real reason such as when she crushed that shack in the village as an example (noting that if an innocent died inside it, it was justified because they disobeyed her), or when she teased that dried meat guy while forcing him to feed her, or when she forced those knights to clean the blood and guts off her foot. I'd say she's more evil than good, she just does whatever she wants with no consequences, I don't see how she's any different from any other giant in this world unless they're MUCH worse than she is.

So yeah, go back and read that first chapter, there's even a sentence there where you say she hasn't killed anyone her entire life, which is clearly not true. And I think there was another sentence where you say that she only kills bad people? Again, not true, she'll kill innocent people for simply disrespecting her or not following her orders to a T. She's basically looking for any little excuse she can find to justify killing someone and get off on the power trip.

This is actually not a bad story mind you, I like it, believe me. I'm just pointing out inconsistency in your writting to try to make you better. You can't characterize someone one way when they actually aren't like that. It's not huge amount of mischaracterization mind you, just small senteces here and there, especially in the first chapter. Anyway, i'll be keeping my eye on this one, i like what I've read so far.