Ok: My FM skills are limited but I started out with comparitively simple border designs and find that marking with slivers of soap on the dark fabric works really well. I don't think FM them is any harder the stippling. My next quilt to FM is going to have a fairly complex "block" design. If I were to sit down and FM your lovely quilt I would start out with a design that complements your pieced blocks, then stipple the dark brown, skip the pink and use a border design that echos the shapes in the pieced blocks. I have a book of continuous line quilt designs called "Quilting Dot to Dot" by Cheryl Barnes that I find invaluable. You can take it to a copy shop and have the design you choose blow up or reduced to exactly fit your block or border. Whatever you decide it is a truly lovely quilt.