I play with my fabric all of the time, auditioning various prints and colors to find a combination that just sings. I use my phone to snap photos of the process to remember what I have tried and pull back and take in the whole work.
This process was perfectly illustrated when I was working on the background of my most recent quilt, the American Foursquare....
Which do you think works better?
That lime green strip in the foreground brought everything to life.