I love the idea of the feathers, but I would only do cream on the cream areas and burgundy (I see it as burgundy, but don't know if it is only my computer. You may have a few more color changes, but very worth it. Also always use the same color thread on the top and bottom. This way if the machine sneezes and the tension changes on a stitch or two, the bottom thread will not show on the top.
What size is your quilt? I sell a lot of quilts. I find that if a quilt is a normal size for a bed it sells very quick regardless of the price. Also I have very good luck selling small wallhangings. What I find people have a hard time selecting is quilts that are too small for a bed or a lap or too big for a wall. Of course, it depends on the market around you.
How big is it?