FIrst off, the progression of the story seems a bit hasty, with a lot occurring in what must be only a day or so. THe events that occur also strike me as something that would transpire over an extended period of time.
Example:when he meets the archcanon, I honestly don't think he'd have such an easy time waiving himself into the palace of Vivec and gaining immediate audience with the entire Tribunal.
Dialogue still feels a bit unnatural at certain points, and I'd recommend giving saying the lines out loud to see if they feel natural to you.
Otherwise, it is a good story, but it just feels like the character advances too quickly between major plot points, especially since said plot points seem like they'd occur over the course of say, a week.