Belinda - The Mandala is an ancient and sacred symbol of the universe. Classically in the form of a circle (the Cosmos) enclosing a square (Earthbound matter). Mandalas are used for meditation, contemplation, healing and visual pleasure - Sandra Joran
Anatomy basic shapes - most people know of these simple drawing rules. But when you are having fun drawing you somehow ignore them, or maybe thats just me? Anyways, i beleive using them more consistently would improve my drawings a lot!