I alway see the proverbial 'half glass as being full'. I guess that is because I am basically a person who sees everything in a state of flux but basically going in a positive direction. When I see your composition, I still identify with the positive but the dark half of that cirsle is really ominously depressing. It is a good thing that I can focus my attention on all parts of the composition, but my focus is to the white and hence to the 'light side'.