Another thing that escapes me is HOW to give substance to the forms. One day they look solid and 'real' and they seem to hinge upon each other and splinter and creak, fall with a thud to the bottom of the canvas and drag across the surface, and the next day they are like dust, all lightweight and just stuck there.
My husband's a stunt man, and he dragged me to stunt driving school with him because I hate driving and he felt that it would help to make me feel more comfortable. And it did in certain ways, and in certain ways I'm still not.