1. Creat new document, size 5 x 4 cm,300 dpi
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
Go to Image >> Adjustment >> Brightness/Contract and raise Contract number
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)
Look, nice color
5. Choose this gradient
With Diamond fill mode
Preview in Gradient Editor windows
6. Make new guide, View >> New Guide..
Set 299 px, because 5 cm ~ 600 px, this guide will cross the center of page
7. Creat new layer and Fill this gradient by the direction
