I wanted to try this but the file you have provided keeps erroring out. Error while reading m_pCurves Object:
Which version of ZBrush are you using? Assuming it's ZBrush 2018.1, please try downloading the file again. If it's not, then you'll need to upgrade first.
My attempt at Zbrush Michelangelo challenge. It was a fun and challenging given the time limit is only 15 minutes and you're only limited to sculpting on a block. Helped me learned what I need to work on. Also I added the video process at the end