extend your arm outwards and try to bend until the little finger is at that angle. Hurts very much 
Huh, weird then. I must be really flexible or something. Maybe I'm doing it wrong. Hold on...
As for the piece itself, it's looking
like your avatar promising. Not exactly sure how I'd suggest making a wood grain texture, so for that, other than pulling up reference, I guess I'll leave you on your own. I might like to see a more branch-like approach to the hands, though. Can't wait to see when it's finished!
EDIT: Well now it's starting to hurt a bit, but it wasn't that way initially. ow ow