I like the fabric. It is dense and similar colors. If done it would be very subtle color change for sure. Not as bold as some others i have seen for sure.
I personally think it would work. Whether it would turn out to your liking is difficult to say. But if you try and don't lime how they look together. You can try a variation. Either put different triangles in making it more a stack n wack. Or there is one that you put a strip of fabric on the outside and it turns into a type of star.