Those are absolutely beautiful. I especially like the one featuring Gandalf. The Hobbit: An Unexpected Journey opens on the big screen on December 14th, 2012.
Any ideas on why there's the rune glyph for "F" engraved on the door?
If the book explains it, sorry, I haven't read it in 6 years…
That marks his door as The Place! Of meeting! For the trip! :)
There is the blog that is really geat http://www.thehobbitblog.com/category/videos/