not really sure why you went this route. might work for some people I guess but it is not at all appealing to me. The focus is even hindering the color. I would think these would be bright colors, but they really seem muted to me. So it doesn't even have that going for it. The arrangement I think could be appealing, but the blackness in the upper left draws my attention away.
Nice colors and not a bad idea for the challenge. I do however feel this looks more oof then a blur. Perhaps the black on the left should of been hidden?. Your light is nice and again the colors are really vivid.