I liked the episode I, you've created a story differently than most prequels rewrites. Making the protagonists are caught and put in a kind of concentration camp, as in the World War II with the Nazis and prisoners of war.
It is also interesting the vision of the Jedi in your prequels, being divided into different types or guilds, the only thing I didn't like from your Jedi is the vestment of the guild it belongs to Obi-Wan, I don't see the Jedi Knights, guardians of peace and justice in the galaxy dresses like the picture on page 2 of the clothes of Obi-Wan (unless it's just for episode I).

Another thing I'm not agree is the age of two characters:

Obi-Wan: If I am not mistaken in this episode he is 20 years old, I think you put him too young, in my opinion he should be at least 25, to represent the maturity he has in this episode.

Beru: In the same way that RicOlie_2 said Nashira should be older for Anakin to notice her. The same goes for Owen and Beru, she should be at least 14, to be Owen's girlfriend, and I don't think a boy with 17 year old boy notice a girl of 12.

Leaving aside the issue of the ages of the characters, it's interesting the idea that the Republic has already been replaced by the Empire, but does not convince me at all. As everyone else is doing, I think Palpatine should be the one who declares the Galactic Empire.
But as I said above the story is very good, these are one of the few things that do not convince me.

I look forward to see Episode II to see the orphan boy named Darth Vader and Anakin's fall to the dark side.