Well I guess I should start by introducing these two as they'll likely be in a lot of my art.
These are my characters Kaeman and Nohman.They can be considered as both two completely separate entities and two sides of the same being. They both represent certain aspects of my personality so serve as avatars in that respect, but aren't my 'fursonas' per se.
Kaeman is an exaggeration of my good points, such as art skill, martial art ability, confidence, and general "nice-guy" attitude.
Nohman is the part of me that always says what he wants - regardless of what people think - and is generally quite moody and cold.
While the Nohman side of me rarely shows, it is there just like the Kaeman side. They both embody parts of my personality and mood.