2) Apply Filter>Render>Clouds and right after that add Filter>Render>Difference Clouds.
3) Now go to Image>Adjustments>Invert. Then go to Image>Adjustments>Levels and use these settings: Just drag the middle arrow all the way to the right
Now you've got the lightning, it's time to add the liquidy-plasma effect
So go to Filter>Artistic>Plastic Wrap and use these settings: 15, 9, 7
Press CNTRL+U and use these settings: 203, 100, 0
And now you're done!















