Main Sculpting Pass
Now I used a lot more of ZBrush's brush power, such as Move, Standard, Clay, ClayBuildUp, Smooth, Smooth Stronger, Flatten, Planar and some user-defined brushes (Fig.09).

Fig. 09
I always try to define all the shapes and surface features in this pass. Below are examples of my own brushes plus the both Smooth brushes which I used constantly. The TicalCutSmall brush comes from ZBrush's Standard brush. I applied a small alpha, changed some settings in the Samples >Area and also enabled ZSub.
TicalPinch is a simple adaption of the native Pinch brush. In my workflow I constantly changed the Imbed or/and Gravity Strength values. The different colors in Fig.10 refer to areas where I used those brushes.

Fig. 10
During the sculpting process I constantly change my MatCap materials. That helps me to see surface mistakes (Fig.11).
After hours of hard work I ended up with a good shape for my character (Fig.12). I added eyeballs, a shirt collar and some cloth folds.