Parallel receding wave lines under a wide angle lens to make it converge and point towards the central triangle. The half circle of the incoming wave breaks the monotony of the converging lines and adds a middle layer. The bilateral side triangles add contention and echoes the central shape. As a whole shapes and lines form a dynamic setting that works well with the subdued cold tones.
Take a look at ThePP group and the Lines contest:
www.flickr.com/groups/ngproinvitation/discuss/72157669523... 