Oof, there's quite a few broken links, but it's still understandable reading through it. I think I've hit a dead end, but I'm not sure if that was due to errors.
Regardless, that was really interesting, and the choices feel pretty good. They feel weighty and like they could change the course of the story. The only place where it was weaker was during the conversation with Karenin's boss. I got confused halfway through about what the significance of the choices could mean, and that was where the choices was less impactful, despite there only being two choices. However, I'm not sure I'd want to see more. It feels like such a stark and bleak world that permeates through the story that the distinct lack of other choices makes sense. (I say that in a good way!) I don't know the source material that well though...
Really consistent writing throughout as well although sometimes I wish there was just a tiny bit more description of the environment. The lack adds to the bleakness nicely though. The dialogue is pretty strong and I think it really describes the type of people these characters are without any exposition. Great job on that, and overall!