Crystals( Preview )

1. Create a new image, 300x300 pixels or bigger. Now, this is the fun part. Select the airbrush or paintbrush, use a brush of at least size 20. Scribble on the background layer. I suggest using three different colors of the same hue. {i.e. light blue, blue, and dark blue. }
2. When you're satisfied with your scribble. Filter --> Stylize --> Extrude. Select pyramid for your type. For size, choose something between 8 and 30. For depth, I suggest a number larger than 233. Select random. Click Ok
3. Duplicate the layer. {Layer --> Duplicate Layer.} Select the new layer. Then, Edit --> Transform --> Flip Vertical. Duplicate the new layer. Then, Edit --> Transform --> Flip Horizontal. Change both of the new layers' modes to multiply
4. Continue to duplicate and flip and play with layer modes until you are fully satisfied with your creation.