I never knew that a single picture could start such a discussion... obviously it wasn't boring, eh? ;-) Bloodsong: I rendered the head of the Poser skeleton, then adjusted graduation in Photoshop to get rid of the 3d look. After that, I applied a wave filter to make it look more blurred. I created a new blank image, applied the "clouds" filter and defined it as a pattern. Then, with a pressure sensitive tablet, I applied the smoke to the skull using the pattern stamp tool. A little blurring here and there, a bit of darkening the upper left part of the skull, and finally making the smoke layer a bit transparent.