This is a concept for people who live in a world in which the Sun has become too bright, so they must wear a mask at all times to protect their eyes from the sun.
I'm going to do a concept for a higher caste male next. And maybe a few mask concepts.
Just click the image to see a larger version!
This character is part of the lower caste in the society. Because these people do not use their eyes, the way they identify each other is by a specific scent that is emitted from a lantern they wear around their necks. The way they identify what caste they are is by the markings on the masks they wear. They reach out and feel the markings to identify them.