I re-did the rear center sheep using satin stitch rather than duplicate stitch, and I'm reasonably happy with it. I tried, as the designer and a Facebook friend suggested, to add eyes to that sheep with French knots in the blue yarn. The French knots were way too big, so I removed them. I may return to this project in the future and add eyes with embroidery floss and neaten up the other sheep. But for now, I'm done with it.