Over on behance.net, they share some print and build models from "Brutal London," a 1960s and 1970s architectural feel. Check them out here.
Also, from Wizards of the Coast, they're giving away the hi-res version of their Sword Coast Map fashioned by cartographer Mike Schley. Snag it here.
Finally, on the AJ Pickett YouTube channel, as part of The Mighty Gluestick series, he delves into "Cavern Tile and Crystal Painting tutorial." Enjoy!