Oh, wow. Just... wow. The detail of the whole thing... I'll focus on the broom, since I know you've got pictures of other things up here too...
So, I love how you're not afraid to use bone, especially for a figure like Baba Yaga it's quite apropriate. And I love how rickety the broom looks... are those roots or branches, I can't quite tell? Either way they're very evocative of a crone. The yellow thread is a nice touch, too, brings some color into it.