1. Render white clouds.
2. Get skin tone and black gradient. Set to the line gradient
3. Set the render, make one gradient just so the skin tone passes it, set to overlay.
4. make another gradient with the same colors. But place on the opposite side. (right hand side)
5. Set to overlay.
6.Render white clouds. Set to overlay.
7.Duplicate the render 6-7 times, Smudge the render with different brushes.
8.Merge the 6-7 layers. Set to overlay.