I remember seeing this entry in the challenge and thinking it was a very different idea. I know one of your commentaries had stated the photo might have been a bit better if we were loser to the balls, I would have to agree. The bigger they look the scarier they would appear. I can see that maybe your were trying to get the lovely backdrop in the shot, but I would be curious to see the shot but closer on the balls and possibly just the sand in the background. Of course this type of shot maybe not have been taken so well from the voters, but I think it would make the balls seems much more threatening. Good concept and photo.
Maybe a bit closer would have made the sandballs seem more significiant. Regardless I really appreciate what you were going for with the image and think it's a nice job.