wow, great improvement!
I think the effect looks better when you don't mess around with the camera. The second take was the best one. The third one is also good, but the second just didn't make the portal feel as flat.
I looked through your list och changes you are looking into. It looks nice. But the anticipation on the book should be higher prioritized in my opinon.
I feel that the effects around the chargeup could and should be more powerful, make the effects faster, more intense, beams of light that crackle on from magical-purple-cracks, the book starts swirl and shake more because its about to explode then a big flash big and the portal is active.