It ends up looking Clean & Simple, and yet it was quite a lot of work. I used little brads to help me with positioning. The design is an imitation of a curve-stitch design that I found here. I sort of guessed my way through it. What's nice is that by the time I was done, I felt that any additional embellishement would just detract from the string art, so I just added a sentiment and I was done.
Thanks for looking!