Haha, why is the crown around the stag's neck? That's never how I pictured it reading the book, though I suppose with it just being described as "a crowned stag" there is room for artistic interpretation (although the pic in the glossary had the crown on the stag's head).
I do like it for symbolic reasons--being a king is a burden, a collar around your neck. Unless you're Joffrey, I guess. It should be a burden, I should say.
I'm so glad they've been releasing those Vlogs, they are pretty good stand-ins for a trailer, even if they lack the artistic editing of a trailer they still give us looks at new scenes and new characters.
EDIT: As envious as I am of Seth McFarlane for that, I would probably just give him a brofist if I met him.