A) Eye tends to be drawn to “individual” shapes instead of the structure created by an entire “group ” of shapes.
B)If each shape operates only in a positive/negative relationship when viewed as a member of a group, the effect is one of more unity and more flowing movement. Eye tends to view as a whole, instead of grouping individual shapes.
Both of these principles can operate effectively on separate levels or on a combined level, but consideration of these facts is important.
-from the journals of Keith Haring