I am guessing those flowers are appliqued down...stems and leaves anyway. So along with close stitches on the outside of these items, I would carefully run a vein down the center of those leaves. Then after doing all of the machine stitching, I would anchor those buds down by hand just a few stitches each, otherwise when that quilt is washed down the road, those buds may stick up and not look pretty-anyway that is what I would do if it were mine....