Thanks roguenroll,
I used a combination of several techniques I picked up from the incredibly talented artists on the forum, mainly alpha stencils in PM and the deco brush with all the settings dialed down low. Check this link
http://www.zbrushcentral.com/zbc/showthread.php?t=875&page=2&pp=15
for some more info.
I found also that creating the craggy skin texture in PM I could get a better effect if I accentuated it with a very low set inflate brush.
Otherwise, I used a lot of techniques from traditional clay, that is definig big forms first then working down to the details letting the larger forms support each successive pass. I like laying in details then pushing them back with smoothing tool then pulling out the ones I liked, then attacking it again layering on the detail instead of trying to pull it all out in one pass. It took a lot of getting used to to apply the same workflow I am accoustomed to but I think I am on the right track. I still think that he may be heavy handed but I will dial that down as I extract the maps, since details does tend to be lost when you are rendering.
Thanks Again!
Scott Spencer
www.scottspencer.com