I am wondering if you might do a variation, just one color since shape is what counts. I am curious if the letters were slightly thicker, how that would affect the design. I understand that you would likely have to also create a slightly bigger circle to accommodate the fonts. What I love about the present design is the elegant way it fits the elements: c and b both share the curve of the circle. And nothing is straining to create an effect. It just works. But, I wonder if slightly, not a big change, but a small increase in thickness might create a sense of more strength. Then, it would be elegant and strong. But, I realize that changing one thing can blow up the whole thing.