Complexity v simplicity

I'm never sure when simple is too simple, or when adding a bit of complexity is an improvement.  Sometimes I throw something in in the middle of a repetitive sequence, just because I'm bored with the process, and that's usually a mistake.  This time I did something different.  I had finished my red and black tets necklace, which, I showed in an earlier post, and I liked it a lot.  Still, I thought it read as a very simple structure, and I thought I might add something so that it would show more complexity.  I added 5 extra tets to give the necklace a bit of "spikiness" instead of being a simple ring of tets. I think it was an improvement, but I'd love to know what others think, looking at the 2 together..