There is a FREE update to the ZBrush SKIN brushes pack with 26 new brushes for high-frequency details!
If you already had the brushes pack, you should have received an email with the link, but I thought I should share it here in case you missed it.
This character is a work-in-progress and it has been detailed 100% in ZBrush using just the new brushes from the pack (plus a couple of the old ones):
hope you find these new resources useful!