The only way to get better at FMQ is to practice. I think it would look fine with a basic meander. Leah Day has a bunch of Beginner FMQ designs to check out:
http://www.leahday.com/projectdifficulty1/
You could try out some different designs in the different parts of the star, or the Super Spiral might look nice. If you pick a nice thin thread like Aurifil 50wt/2ply cotton, the quilting lines will blend in with the fabric much more. If you do quilt the white areas & blue areas using 2 different FMQ patterns, you could even change the thread color from white to a blue and it is bound to look nice. Every quilter has to start somewhere.
Oooh.... just saw a video with those feathers. Those are super cool & do not look like a beginner level at all! Wish the video was clearer & actually showed the quilting so I could learn to do that, but it's cool nonetheless. Definitely need to post pics when you finish!