Yavanovskaya is very lucky. Her height must be least 1.70m and still have good height difference with her partner.(Mozgov) She have picture with Elena in here:
I think Mozgov has the potential to be a better partner than either Ruslan or Nikita. He just needs to extend a bit more and Kustarova needs to stop putting him in costumes that make him look like a truck driver. And if Zueva wanted a couple with chemistry, she should have taken Yanovskaya and Mozgov. Except their chemistry screams sex rather than love so maybe they were too R rated for her and she took the G rated version of Sinitsina and Katsalapov.