This tutorial will briefly describe how I created my blind warrior from a painting.
First of all, the Painter (Park Jea-Yeon) creates the concept in detail. Why doesn't he have eyes, How can he live in battle. all of the smaller details can make a realistic character

(3d adaptation of some great concept art by Park Jae Yeun from Korea.)
Then I moved to Maya. By the way, the picture doesn't have any side view and front view, so It's little bit hard to make full figure. so I used a proxy model before I made character. I can think of how tall he is and how defined his muscles will be.
I used reference from various similar people for his face to get a better idea of what he would look like.
the wireframe is fairly low polygon so that I can use Zbrush to add the smaller details, so I only have to think about the models proportion and pose at this stage