Clasp Weft Bookmark

I have this really great hand-dyed JOY 20/2 yarn that I just love. I have enough for a full scarf project, but it has been talking to me. So........ I have combined it with some 20/2 tencel for a clasp weft on this bookmark.

I am about at the end of this warp. Do I tie on and weave more or "?".