1. Creat new document, size 5 x 4 cm,300 dpi
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2. Creat new render, we 'll use Cloud
Go to Filter >> Render >> Cloud
3. Next, Filter >> Sketch >> Water Paper and set parameter as like this
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Go to Image >> Adjustment >> Brightness/Contract and raise Contract number
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4. Make some color there
Go to Image >> New adjustment layer.. >> Color Balance and set parameter for
Shadows, Midtones, and Highlights area and move this adjustment layer to the TOP (This part it dosen't matter whatever you want)
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Look, nice color
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5. Choose this gradient
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With Diamond fill mode
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Preview in Gradient Editor windows
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6. Make new guide, View >> New Guide..
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Set 299 px, because 5 cm ~ 600 px, this guide will cross the center of page
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7. Creat new layer and Fill this gradient by the direction
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