I then add brushes to several of the layers. (I keep all the layers open throughout this process). Using the brushes gave me the ability of fine control of adding texture directly. I think this gives the image another dimension.
Note that it is nice to play around with these tools and techniques, however, the image should be a great image to start with. Nice technique over a bad image does not go unnoticed.
If you have any questions, please don’t hesitate to ask. I will be glad to help in any way I can. Below is a url for Free Textures…
http://www.designshard.com/freebies/300-free-hi-res-grunge-textures-youve-never-seen-before/