New headboard in the making

A while ago I decided to finally go shopping for the materials needed to make my own king size headboard. In the end, factoring in new matching sheets and pillows and the materials, it probably would have been just as cost efficient to go with one of those three hundred something dollar headboards easily found online. Anyway, this is the material I chose, a little more navy blue than the picture lets on. Would anyone like to suggest a duvet cover that would go with it? I was thinking red, but that may be too patriotic, so possibly  an eggplant color, or gray? Right now I have all white.

And here's a sneak peak at the work...

And where it will go...