Does anyone know how to make those amazing blended brushed cloudy blurry beautiful anime designs you see on design sites, or where I can find a tutorial?

The coding is fine, but the images I have no idea where to start.

Examples of what I mean
http://kyuusho.net/designs/divs/01/
http://kyuusho.net/designs/tables/09/
http://kyuusho.net/designs/tables/06/
http://kyuusho.net/designs/tables/05/

Lol no biasedness goes to Kyuusho, I just think those designs are pretty.

Thanks for reading/attempting to help.

PLEASE SOMEONE HELP