Get the few main lines and see what lines they call out.
Personal experimentation is revealing, and once you get into it, immensely engaging.
The picture that looks as if it were done without an effort may have been a perfect battlefield in its making.
Do whatever you do intensely.
To paint is to know how to put nothing on canvas, and have it look like something when you stand back.
An artist must have imagination. An artist who does not use his imagination is a mechanic.