Inspiration:

The Philtrum

I've always thought that the philtrum (the round indentation above the middle of the lip shown in my sketches here) was a beautiful part of the human face.  I decided that I wanted to sculpt an alien character whose face was based around a form reminiscent of the philtrum.  I sculpted Mr. Phil Trum in Oculus Medium, and rendered in Blender.

Chosen Reference Sketches