1. Make a new document, size 800 x 600 px
2. Filter >> Render >> Cloud
3. Filter >> Blur >> Gaussian Blur with 7.0 px
4. Then go to Filter >> Sketch >> Chalk & Charcoal with these parameter.
5. Hit Ctrl + U
6. Duplicate layer, choose another green color, then Merge Visible ( Ctrl + Shift + E )
7. Duplicate again, then go to Filter >> Blur >> Radial Blur
8. Then, duplicate layer "background copy" , mode = Screen , duplicate "background copy" again, Rotate 180 degree, mode = Screen too
Result !
9. Create new layer, fill black color, using Elliptical Marquee Tool make a circle selection
Hit Alt + Ctrl + D to open Feather Selection box
10. Set blending mode = Soft Light for this layer.
.jpg)
11. Duplicate the above layer ^^! , go to Edit >> Transform >> Scale, scale it. When scale , hold Shift + Alt to keep these "scales"
Done !!!
More Tutorials: 
