Spoilers:
I don't like the fact that both of Katia's husbands died soon after the wedding. It's redundant. After the first husband dies in seasonal 1, season 2 is like starting all over again. Back to square one. Also, I found season 2 to be less interesting. As far as other characters go, Grisha was confusing . I couldn't figure out if he loved his wife, katia, or neither. He was always flip flopping, acting strange ECT. I was hoping he would change and become a better person, but he was evil until the end.