Here are the first official promo images from HBO's Game of Thrones:
This is our first glimpse of Sean Bean as Eddard Stark. I've included Amok's artwork for comparison; the two images are so similar, from the pose, to House Stark's ancestral greatsword Ice, that I almost wonder if this was done intentionally.
And here is an earlier image that HBO released a couple of months ago. This scene is based on the book's prologue, and is expected to be the first scene of the show's pilot episode.