thats not what he wanted. He has a brushwork question.
killer, act like your an archetect and make every last detail. That is what seperates the good looking maps from the normal maps, detail. Brushwork is something that is self-learned, not taught. Its what makes a mapper unique, so try to do it yourself. If it does not come out right the first time, try try again til you get it. You can't really just ask for help with brushes, unless you are haveing trouble using the VM tool, which in that case it would be right to ask.
Everyone has their own mapping style, and soon you will aquire yours. Then you can worry about the details.