This is mainly for
PSP users. I downloaded the
Clouds Plugin from here. Those of you with CS will already have it.
Open a new document and go to Effects/Plugins/Mura's Meister/Clouds...these are the settings I used: See first image.
Now add a new raster layer and fill this with a gradient as I've done here: See second image.
Now set this layer blend to soft light and adjust the opacity to suit. I adjusted mine to 70%. See 3rd image for finished backdrop.
Now to get the different colours I just went to Adjust/Hue and Saturation/Colourize and changed it! See 4th image.
The last image is a crop from a photo of a cousins niece. I separated her from the background she was on, added the backdrop and gave her a painted look. (This is half the size of the original)