This is a zbrush Head I was playing around with, my 2nd time sculpting my own design ... About 45min to an hours work, getting used to speed sculpting. (I'm not the best designer in my eyes) but Zbrush is nice to get ideas flowing. I always love a challenge..still lots to learn. Need to do more anatomy studies in the future..stay tuned for his body ect.
Here's a vimeo of my work flow if you're interested![link]
All the best!