It's becoming almost passé to do artistic variations on the sigils of the various houses from Game of Thrones.
But this one is worth bringing to your attention for a few reasons. First of all it's LEGO and that makes everything cooler. But also it's extremely well executed as a poster.
The image takes advantage of the three dimensional nature of the Dire Wolf sigil to cast shadows and texture across itself and then emphasizes that further by placing it on a stark black background. Finish that off with carefully crafted text using the "Winter Is Coming" slogan and you have a very striking poster. Its harsh simplicity very much embodies the house which it seeks to represent.
Omar Ovalle has an eye for both LEGO and design in general I think.
Source: Flickr — House Stark