How do you use value in highlighting the center of interest in your work? Value changes draw the eye. So
if you have a very dark area adjacent to a very light area, that contrast will become a focal point. Squint your eyes when looking at your work and see where the highest contrast in value is in the piece. Is that the focal point? Or do you need to change the values so that the higher contrast area is at the focal point?
Take a look at what you're working on now and ask yourself about the value pattern and how it is affecting the design. Leave a comment and tell us your conclusions.