I had a blast taking a course by one of my favorite Sculptors: Johnny Rampant. These are my results.
Renders are BPR right out of ZBrush. Texturing is all Polypaint.
The course immensely helped me to get to a professional level using ZBrush.
I also quite enjoyed the organic modeling practice absorbed, and had some epiphanies about how proportions can be used as a compositional device to evoke emotions.
His version can be found here: https://www.artstation.com/artwork/48kAL , https://www.artstation.com/artwork/L3O9v