The curtains for the bathroom window were started June 3 and finished June 4. Easy, peasy. I made the valance from the top of the shower curtain and the bottom panels from the bottom of the shower curtain.
I'm not entirely pleased with them: The valance is too long, the bottom too short. The hem on the valance is too long (about 3 inches), the hem on the bottom is the one that the shower curtain came with (about 3/4 inch). If I was more industrious, I could make the valance shorter and that may help the bottom panels not look as short.