Nice sculpture! The detail is very nice. Never did get the hang of that stuff.
Been working with Zbrush 4 for quite a while now, just practice mkes perfect. Watch a couple of sculpting tutorials on youtube and if you follow them and practice, you will get pretty good :-D My favorite on youtube is. http://www.youtube.com/watch?v=U4VyMLV7jGM same ideas, different program (Mudbox):-D Peace