I need to start by saying that this sound pack is delicious. Holy guacamole. You are one of my favorite living composers. The main reason is because you know how to paint a vivid picture with only sounds. Computer generated sounds at that, not even real human expressiveness. The balance is smooth, the voices are warm and brilliant, the harmonies are the right kind of dissonant where I don't feel like I'm sitting through a Berg piece, but you're definitely creating an intensity and discomfort.
There are definitely spots where you've captured that classic Russian sound, but I feel as though you may have been able to implement slower interpretations of Russian dance rhythms or something like that to really give it an authentic cultural flavor, but that's only a passing thought. Your choice of go-to intervals and bass-lines do a good enough job of creating that atmosphere.
I love what you do, Chris. Never stop please.