This image is a still from the animated film Tekkonkinkreet. I find the composition of this piece interesting, it clearly makes use of divine proportion. You can see there is an increasing amount of information further into the spiral, when it is applied to the image.
A painting by the renowned Feng Zhu, one of my favourite artists. It is apparent that the artist has followed (however unintentionally) the hexagonal grid method; to increase interest in his artwork.
The cover artwork for 30 Seconds to Mars' album "A Beautiful Lie" surely uses a root 3 hexagon grid. With the grid applied, it can be seen that all three arrow points line up perfectly. The skulls aso fit perfectly within this grid.