I've made two in the past couple of weeks. The main criticism I have is that the jelly rolls I used for the second one had too many repetitions of the same fabrics, thus creating too many places where the same fabric was side by side.
I also discovered that I prefer the look of the diagonal joining, even though it is a bit more work. And I also think if I do another one I will cut the strips in half as well. That may help with getting more variety in the piecing.