Nice bright complementary colours, definently meet the challenge, nothing else to take away from the green and red (as in alot of other phot's in this challenge). The dice actually look like giants, like they would be big enought to sit on or use as foot rests. I can see this photo in a childs play room or somthing, it's fun!
I tried to wipe the dust off of my monitor... I then realized that it was in the picture. Had you also chose dice that had perfect paint, to go along with the perfectness of the photo, then I would have to give this photo a 10. Unfortunately, and due to the aforementioned pitfalls, I give it a 6.
I think I'd take the white and do a selective color adjustment and remove all of the black. IT kind of dulls the background color a smidge. NOt overly interesting. Perhaps if you'd shot it from a different perspective?
Nice shot. It does't have any thing to really keep your attention, but I like the use of the space. Also, I see a little dust on your image, but since it's basic editing, I'll let it slide.