Excellent chapter!
The fight scene was very well done, as was all the political shenanigans.
I really do like your Luna, and the slowly building relationship with Harry.
Is it at all possible Harry gets the girls? Susan, Hermione AND Luna? The three of them would get on well, and they'd all make Harry happy.
Will Petunia be grateful or her usual harridan self now that Vernon is dead?
I look forward to your next update.