You know, it's funny, I don't even live in a slavic country, but as a child this guy totally scared me. I knew him, because I loved folklore storys from all over the world since ever.
I think much of the folklore comes from some place in our collective unconscious, and mythological creatures like this one are often manifestations of our primal fears. It's great to know that I've managed to make this folklore character feel familiar, thanks.
Love it!