i made the back ground my self
Make New Image Any Size , Use the Gradient tool [Linear Gradient] and use the line from the bottom of ur image too the top
then go to FILTER > DISTORT > POLAR COORD [Rec to Polar]
then FILTER > PIXELATE > MOSIAC
then use FILTER > DISTORT > WAVE
use these settings...
No of generators : 132
Wavelength: MIN=1 MAX=40
Amplitude: MIN=1 MAX=15
Scale: Defualt
then FILTER > STYLIZE > FINDEGDES , after that press Ctrl + I to invert image
then FILTER > STYLIZE > WIND X2 [Ctrl + F]
then press Ctrl + U to change colour , either colour will do ,i used green
after changing colour , Duplicate your layer [Ctrl+J]
Blending Options on the copy will be OverLay
Merge those 2 together and your done , just use the rectangular Marquee tool to cut out whateva bit u like the most and use it for a siggy like i did

[You can use Radial Blue 100 , Zoom , Best 2 times to make it look more effective]
Enjoy