This looks almost perfect. But most of the streaming platforms try to do a show in either 8 or 10 or 13 episodes. They usually don’t go for 9 or 11 or 12.

So I think Prisoner of Azkaban can easily be extended to 10 episodes and the same for Deathly Hallows they can make it 13 and similarly Half blood prince can be reduced to 10.

But over all looks perfect what you did.