I love Minnie, especially the way you've written her here. She's
strong, yes, but also compassionate. Her guilt over Sirius's
death, especially after delivering that lecture to Albus, was
poignant. Her speech was inspiring, You could tell how much
she cares about her students in what she said and how she said
it. And I could quite easily picture McGonagall from the books
doing and saying everything you have her do and say.