Portrait of an imaginary person.
Sculpted and rendered in Blender (Cycles renderer).
I decided to sculpt this guy as a single mesh, instead of the usual blocking out with separate primitives. Then I separated the shirt once that was sufficiently shaped.
For color management I chose the AgX Greyscale look. It required searching for the right greyscale values and light strength to get it right, but I like the depth of the result.
Work-in-progress stages: