Freshemedia square developed

Starting with a Freshemedia square brush, from Photoshop Creative magazine's monthly resources disc*, PSE gradients have been copied onto the squares which were individually turned or flipped. Then the concentric set of three was given a rounded 'glass button' effect, then copied twice and spread out. The background started with the same multicoloured gradient, chopped into quadrants, flipped and then 'extruded' resulting in the spiky pyramid points. There were a couple of other stages which have given some of the differences in shading.
* I don't subscribe anymore, but I think the CDs have been replaced by online resources.