Illustration:
Leonid's old dear is clearly about 5ft nothing (probably less - look at her and the fence; is that fence nearly 5ft tall? doesn't look it) and is schlong height on little Len.
Bao's missus is 5ft 6" and is just above schlong (about 5 or 6 inches actually).
Now, unless old ma Stadnyk is actually about 5ft 8" tall, there is no way that Leonid is 8 inches taller than Bao.
Also, here's Leo meeting the president...
.... who stands a few inches below his shoulder.
Whereas Big Bao in a crowd....
.... has no one anywhere near his shoulder.