Fist of the North Star!
Ok, umm well just take it little piece by little piece. Try to anyways.
Get your hair idea and beside that try to shape the head.
and if you're going with closed eyes, add a little emotion to the face or add a background effect...
I'm thinking glitter or flower petals in the air.
Or you can try eyes open, whichever works for best.
And stocky? do you mean stiff, or lifeless?