This chart comes from http://graphjam.memebase.com/:
As an amateur writer who sometimes dabbles in drawing/painting/..., I think this is quite accurate...
For drawing etc. I'm shifting red-orange. I occasionally read something about perspective, anatomy etc... (but I don't draw manga or anime. Don't like that style.)
Never followed a drawing course and never will. If I ever follow a course, it will be a writing one.
For writing... ehm... I'm quite sure in my teens I was in the grey zone. I didn't like the books my teachers adored, so I didn't listen to the writing advice of the same teachers. I dunno where I am now. Green? Maybe blue? As for studying, I've gathered some writing tips online and in occasional workshops, but I didn't follow a course or anything. Practising - that I do very often Green with a tinge of red ("writing is my hobby") in it
Fellow artists/wannabe artists/... What do you think?