I am thinking about doing this one myself. I don't like the scrappy look, so I am going to find one focus fabric and pull 5 or 6 colors from that and call it good.
Your colors all look like they are in medium value range. I would think we would need everything from darks to lights for that project. It doesn't look like you have enough contrast between the colors. I like them, but some need to be darker and some need to be lighter, does that make since?