I'm very glad you didn't regret abandoning all your other readings. Good to know you enjoyed it!
Minerva has always been one of my absolute favourites, so thank you for finding her "wise and wonderful". I wish I had had more time to explore her relationship with Snape in this. It must have been highly charged during Deathly Hallows, and I would have loved to include more conversations with Snape - anyway, the one that's in the fic apparently worked out okay, which is good to know.
Petunia was the character I was hoping to write for this challenge. I don't actually like her myself, but it was very interesting to write from her point of view. The motivations of all her actions are highly selfish, even though she is granted some growth. Big D is the only one of the Dursleys who is allowed real growth and character development.