While I think you should ask your customer a few clarifying questions, I can't resist guessing at what she wants :-)
I'm thinking she wants a traditional pattern using the colors she specified - but making the quilt out of relatively plain, single-color fabrics, e.g. one-color batik, tone-on-tone, or even solid color fabrics.
JMHO, of course. I'll be eager to learn what she tells you!