At first glance, it might not seem like there's a whole lot going on here, but the more you look, the more you'll see. A variety of inconspicuous textures are used to give the poster greater depth and complexity.
The bold, striking typography is set off and balanced by the simple, primary shapes used in the lightning/cloud image. The use of multiple color gradients draws the eye from the top of the poster down to the bottom. And the color palette used is simply inspired.
All told, a wonderful flier, perfectly suited to send off these bands to their SXSW adventures.