Thank you for this detailed discussion of what you liked, and why. Your compliments on the characterisation ten years on are particularly gratifying. I like to think sometimes that the wizarding world might shape up and act to ensure that it's not tipped into war and chaos in almost every generation.
I've felt that one of the Malfoy males' problems is being an only child, so if I get the chance to give Scorpius (or here Draco) one or more siblings, I tend to leap at it. So stabilising, especially necessary for a child brought up to such privilege and entitlement, to learn how to share before stepping into the wider world.
I don't know whether I'll be writing a follow-up to this fic (I'm really bad at that, and so far have no plot notions for it at all), but if I do, it'll have to be called, obviously, Fly Away Home. (And I'll have to make sure that Severus flies in it, at least once, heh.) Having written an almost completely gen fic here, I wouldn't want the next one to be pure smut; it would need a plot, and any sexual intimacy stuff would need to be essential to both plot and characterisation.