Oh Raine... I want to offer some kind of support or comfort, but I'm pretty sure she'd not appreciate such things from a stranger. <.< Ah well...
This piece did make me tear up in rl, and left me feeling rather pensive and thoughtful for a while afterwards. I suppose this is one of my favorite art pieces at the moment, just for the amount of emotion it evokes and the thoughts it provokes.
"Your aren't even actually my sister!" doesn't sound really right to me. I think "Your aren't even my actual sister!" would have sounded better for this maybe. Either way, I think this is still very emotional.
I realize why it sounds funny now, because saying "even actually" is redundant because you could have just put it as "You aren't even my sister!" or "You aren't actually my sister!", and it might have sounded better, not to say that it sounded bad in the first place. The only reason why it didn't feel right to me is when I read it aloud. I guess you wanted to add emphasis to the sentence, so it would sound more interesting than just saying "You aren't my sister!", which I guess this is a case where "less is more" maybe, since you kind of over emphasized there. I hope this makes sense and is helpful. I don't want to come off as some jerk ass grammar nazi, so I apologize if I ended up sounding like one. D;