Yes, the skins are designed as two separate pieces for one's preference. I, too, prefer no distraction which is why I chose the black woodgrain. There are several very subtle designs, or solids, that would work well. I have used decalgirl products on other devices and the quality and customer service is excellent. As I previously mentioned, I would recommend ordering the matte version.
I might add that you need not worry about installing their skins on your Kobo. There is no sticky or chemical adhesive/residue involved. In fact, if carefully removed, they can be reused.