There was a study done a while ago about kids who drew the same things over and over and over again – dragons, cars, dogs, etc – usually the same pose, creature, expression, etc… and linked it to emotional issues. Something about drawing the same thing helped. It was cathartic. Some semblance of control. Safe. Familiar. An anchor.
I don’t know if that’s what this is, but I sure draw a LOT of sad little Conans just like this.