Blu is a street artist from Argentina. He’s taken graffiti to a whole new level, creating animations on walls and sidewalks. His latest is Muto which is both a technical tour de force and an eye-opening creepy animation:

Not only did he work in the less-than-ideal environment of the sidewalk, but it meant that he couldn’t have more than one frame in existence at a time, with no possibility of reworking old frames or sketching out new ones. Once the frame was shot, the work was destroyed. Amazing.