Wow a perfect score of 5! That is amazing in itself. Very cool negative feel going on here. An interesting idea. Good use of the square format with the centered composition. Probably not "circle" enough for most voters, yet still a terrific capture.
Definitely original - interesting color tone choice. The more I look at it, the more I like it, bumping up. Would have been nice to discern a bit more of what's going on on the background.