There is such a wide variety of avatars that it's impossible to neatly classify them all. Here let me briefly mention just a few other types of avatars. Truly bizarre pictures might make you wonder about the person's grasp of social appropriateness, or even their mental health. Such very unusual avs are most popular among adolescents - for whom extreme behavior is a way to express independence and individuality, and to test the limits.
Billboard avatars are announcements of some sort - political, philosophical, personal.
They are used by those who have something to say and are not reluctant to display their thoughts in a commercialized type format. Lifestyle avatars , which are quite common and varied, depict some significant aspect of a person's life - usually something to do with occupation, hobby, or personal habit. It may be a way to attract like-minded individuals. Matching avatars are designed to accompany each other and indicate the connection or bonding between the pair of members. Considerable imaginative and technical skills may go into creating such avatars.