Even if a majority of the work I do is related in some way to my projects or worldbuilding, I do draw for fun in order to stretch my legs from time to time. Some of these works might explore my emotions; others might simply be characters for Dungeons and Dragons; others still are simply studies for things I don't often draw or techniques I don't often use.
I still have a lot to learn, and these works are a part of that learning process.