Oh, nice! I love the ambigous AU-ness of these - it took me a couple readings of #1 to realize it was totally AU, and that no, Ozai was never really a father to his son.

I really like 3, with the image of those arrows snapping in his fingers, and 4 is chilling - the idea that he'd be worse healed than he is scarred (which is probably really true.)

Five made me giggle - that I could actually see happening, and I love the image of Zuko walking through the fire sucking up the flames.