That's often how art worksDone spontaneously. No conscious thought of what I wanted to portray and what technique is best suited to that. No creation of concept sketches or studying techniques. Sometimes it is something that emerges from messing around in certain software - I don't have the patience to go through the user guide and learn how to use it properly - and sometimes it will be the result of following a Youtube video on how to create a particular effect in Blender.
It's like doodling.