OK, I liked it but I think that you ned to develop Blaise's character more. What I would suggest it more horcruxes, and find a different theme rather than the one that Voldemort found. You've already got Blaise with breasts. Have him feminized with each horcrux, perhaps. Food for thought.
Author's response
Glad you like the Blaise character, and I like the idea of him becoming more feminized as the story progresses, as it is he's twisted as a pretzel. Keeping him in his present state will only add to his conflicted psyche, doncha think? If we bring his mother into the mix, whew! Freud would have a field day with that one. I don't plan on him doing multiple horcruxes, the one will do for now.
N!