After the blocks are rotated, we can stand back and examine the quilt from a distance. Some of the shapes will jump out at you while others seem to retract. This is the time to get everything finalized in its right position before final sewing!
Also, you might want to join all the blocks and rotate them in an area with very low lighting! The nice result of this is a quilt whose sections will really light up in the dark!! Well, if they don't light up literally, they will stand out much more by having done so!! The quilt's colors will have been 'well balanced' by having been done in low lighting!
It's sometimes in low lighting that I realize the need for a move of a certain block while it's on the design wall.