I'm a noob at FMQ. When I did my last quilt, I just sort of followed the print or did wavy lines to oppose stripes, leaf veins, loops and whirls and lots of stippling if I couldn't figure out what to do next. I went piece by piece and as I progressed I started to venture out on two or three pieces at a time doing kind of a flowery petal fan thing.
Stencils are great if FMQ is intimidating though, especially for borders and bare spots where blocks meet.