Just read all three parts in one go. At the beginning of Part 3 I was thinking: 'This could be a book!' Because I didn't see how you were going to conclude all the things that you introduced at various points - there's so much - in three parts. But you did! And I agree, beautifully. Though I still think that, if you wanted to, it could be expanded so that the things that you treat as ideas (e.g. belonging, and all the ways you explore that) you could treat as narrative. I don't know if I'm explaining that well: I mean, that you could develop each idea into a sub-story of its own. Which reminds me: I'm really impressed by how many different points in the narrative you manage, shifting between them but still keeping the forward movement of the story. By sub-story I mean, just develop each story that you've touched on.

Aw, grandma. I liked the juxtaposition of the futuristic and the traditional, with the introduction of the nursery rhyme.

Lots to like. The cross-gendered human/robots. I don't read sci-fi at all, so that might be a totally unoriginal idea. But I enjoyed it all the same. And then at the end I thought 'is she going to die, is she going to die?' I'm glad she didn't.

And finally: She wanted a cigarette now so badly. You're just a big old Mary Sue! :)