Art is subjective. There are no rules to speak of. Some of the most successful artists didn't follow the rules and started their own genres. I really think unschooled art is so refreshing, when one gets all this education, they start to look like everyone else's. I had to unschool myself. I had lost my joy in my art and when I dug out a box of my old art from when I was 4 and 5 years old, and just studied them and went back to that simplicity, I became more successful and started to enjoy my work again. To quote Picasso "every child is an artist, the trick is to remain one as an adult."