Celtic Solstice is my favorite BH mystery (in pattern not color) but it was made before I knew about BH mystery quilts. It was one I always wanted to do but so many quilts I want to make so little time, no telling when I would actually get to it. I think that is why I was drawn to the changes I made. I also wasn't a big fan of the prominent pointed "crosses" and prefer the "diamond" shape instead.
I think putting the lighter in a line in the 4 patches makes the sashing star more prominent and my teal stars were basically getting lost. It was a suggestion from someone on FB, just wish I had thought of it before piecing that one, but thrilled I just had one pieced!!! lol