1) Open a new document any size will do, make sure the colour pallet is set to default (black and white). Then we do a cloud filter.. ‘Filter’ > ‘Render’ > ‘Clouds’

2) ‘Filter’ > ‘Render’ > ‘Difference Clouds’ – repeat this step 2 MORE times:

3) ‘Filter’ > ‘Artisic’ > ‘Cutout’ – change the values to: (number of levels:8; edge simplicity:5; edge fidelity:3) now click ok.

4) To add colour.. we bring the hue/saturation window up – do this by clicking ‘ctrl and u’.