Ummmm..... Almost all my good drawings were doodles in school. I didnt have Art class, if I did I would have hated it because I took 2 years of Art tutor and all of it was painting. This is why I mostly gave up drawing. Occasionaly I might make a good drawing out of boredom.
Dragons are very easy for me to draw for some reason, even though when I get to the eye postion I mess up a lot.
I started drawing dinosaurs when I was at least 3 and it developed into these pisture you see now that are me at 14 years old.