Really liked the setting, it feels different than most interactive fiction, good job on that. I was honestly afraid it would be hard to justify the way The City is, but you wrote it very well and it really makes a lot of sense. Also, I think you managed well the characters being more than illiterate at the beginning.
The only real flaw I can find is that the growth of the relationships with your father and you ro feel a bit rushed to me. The scenes are good the way they are, there just needed more scenes in between to make the growth slower and steadier. But, I understand you might not have wanted to make the game too long or might have wanted to focus on the other themes.
I do particularly appreciate the theme of knowledge being a sort of power in itself, it's easy to not understand the true value of knowledge when one has never known the opposite - thankfully.
Last thing, I really enjoyed it, and played it a couple times after playing Cantata. I must say that the improvement in terms of writing really shows in Cantata, so, good job on the improvement! This was already good, but you stepped up.