The moving animation seems weird to me, and some of the attacks are akward. It just doesn't feel like rukia, maybe add some ice attacks for her zanpaktou. Idk if those blasts were kido, but maybe add some of her most used moves like shakkahou or Soukatsui. The blast's look like there coming out of her sword.
Looks ok, but frankly her attacks lack the feel from the real rukia. Could try add ice-based attacks and perhaps if you get further a bankai and the likes. To corruption, the other guy is trunks from DBZ when he's grown up. There's a really good mugen trunks, can maybe find it with Miraino Trunks (future trunks). Has wicked effects to his attacks.