Lucky, lucky Flora to receive such a wonderful gift!
There are so many wonderful details here, about Sophia, about Viktor's family, his impressions of the school, Harry's family. And I love how you fit the growing relationship within the context of their lives, and not have it spring up spontaneously in a vacuum, as is so common in fanfic. Having Neville and James bring them together works so well (I love the idea of Neville looking out for Harry when he's down) in a fic full of lovely little treasures. Fabulous!