You should make them react to the Sternritters !! (Beside ur video is good, but the reactions aren't the best, like: One second they're normals, one second after they're shocked and come back to normal after one second. U can do better ! And Aizen shouldn't be this shocked since he planned that. They should also be more serious and say more. I have a lot more to say for you to ameliorate your reactions, but you do your best(I hope), so take my reflexions as compliments :V)
