How are these backgrounds created in Photoshop?

I'm assuming they were created in Photoshop :) I know how to use it, but I have no idea how I'd go about creating something like this:


http://farm3.static.flickr.com/2188/2241鈥?/a>


http://farm4.static.flickr.com/3275/2297鈥?/a>





Any ideas?How are these backgrounds created in Photoshop?
That is not a background.. it is a layer layed on top of the photo of cracked soil and set the layer to overlay :PHow are these backgrounds created in Photoshop?
Use different layers. Then hue adjustments as well as saturation.





Then combine the layers and such.