WOW, you did a great job! scrappy quilts are my favorite!
i would do like lisa said..put a black satin stich around the flowers..use a tear off stablizer beihnd the flowers..it will stitch smoother..
or even maybe outlining with with a fabirc marker in black..try it out on a sample piece..press it, then wash it to see how it holds up...
how are you going to quilt that sweet quilt?!