interesting idea for a story! before the last chapter i was wondering when he would go back to the wizarding world.
didn't the order look for harry in his year of absence? you know, interogating the dursleys and going to budapest?
and how will the w-world react to non-human harry? and his friends? i could understand if the weasleys would get freaked out because they lived their whole lives with the prejudices against vampires and werewolves...but i don't think hermione would...maybe, if it doesn't go against your already planned story, you could get harry and hermione together?