This is a simple experiment in nested/fractal pixel art. Each 'tile' is assembled out of smaller tiles that are structurally identical to the larger tiles. There are three layers of skulls; you may have to zoom-in and back out again to experience the full effect. Ctrl++ (or View -> Zoom) will cause blurring, but will work well enough on most browsers.
You are free to copy, distribute and transmit this work under the following conditions: