First of all... *applauds* This is yet another amazing fic written by you both!
I loved the setup of this story: I've always been intrigued by "Snape stuck in a 'Voldie wins' postwar setting" scenarios but never had the heart to write it. Poor him, so horrified with the outcome and just... hopeless :( And that sword in his back -- ouch! Fusing Nagini with Voldemort was genius. That's truly a terrifying image.
And in comes snidget!Harry. What a welcome light in the midst of darkness! Snape's interaction with Featherbrain was priceless. I laughed and grinned during that whole section *g* Everything was so vivid. I could see the snidget clearly in my head even before I got to that lovely picture of Featherbrain.
What I loved the most though was the way you told the story, building everything up to the climax when Harry drew the sword from Snape and vanquished Voldemort for good. Top scores from me... if only I could vote.