Well, I will give you this...I am sure this meets the challenge to the letter, as I can't believe anyone had taken a photo of a commode prior to the challenge. However, it really isn't that technically outstanding, regardless of subject. The white balance may be off, or the lighting might have been poor, and the reflection in the water is a bit distraction (be it by design or by accident). I apologize that I can't rate it very high.
...is your reflection in the crapper. I find it hard to believe this is a serious entry, but maybe if the toilet bowl had some color, it would have helped.
Well it is a good bet that this is something you have not photographed before and that is something. And at least is it clean so that is something else.
I can believe this is a photo of something you've never photographed before. Somehow I doubt it's in a place you've never visited though.
Also, I wish there was a way to eliminate your reflection. However I love the subtlety of the colors and tones. Even when I realized what I was looking at.
It's fairly abstract and I dont know if your reflection was intentional or not, but it does give it a somewhat reflecting pool look. Not a lot of interest or contrast in the shot to really pique my curiosity.