1. filter -> render black and white clouds.
2. filter -> pixelate -> mosaic : 15-25
Filter->Blur->Radial blur: Amount 20, zoom, best (if ur comp can handle best, if not use draft)
3. filter -> brush strokes -> Accented Edges, width 2, brightness 35, smoothness 4.
4. stylize -> find edges
5. invert (ctrl and I)
6. adjust hue/sat (ctrl and u) to change the colours.