When i need to create my version of texture types I use a base image and Blender 2.65a and CrazyBump Software. There are many lessons and videos how to use it so I bet you can do it. Good luck 
When i need to create my version of texture types I use a base image and Blender 2.65a and CrazyBump Software. There are many lessons and videos how to use it so I bet you can do it. Good luck