http://i.imgur.com/z6TdZbe.gif ">
For a thing like this? Just throw out numbers, really, I'm not so good at pricing things.
Oh gosh, that looks cute, actually! ;w; I'd say it would depend on the complexity + how long it takes you to make something like that.
For a bust like that maybe somewhere around 1 million minimum to 2 million for something not too complex? If the object head would be too intricate, I say even 4 million would do. But if it takes longer to make than I assume, I think you might be able to charge even more for that!