I really enjoyed reading this. I really liked the way the worldbuilding is done, you form an image of how things are, and you slowly learn more and more and keep adjusting/expanding it that way. (This may sound very 'Yes, Tessa, that is how worldbuilding works, you get information and you adjust what you know with it' but I promise it doesn't feel standard!)
I liked the characters, the way their circumstances changed how they view things and how that is described and the storyline itself ^^