I hope that thermometer didn't just come right out of the fishtank. Good idea though to add some color to this pretty cold (colorwise) photo. DOn't know how sanitary it is though.
Hmmm, I think the shot would have been just as effective without the thermometer. Also a little wider crop on the left would make it feel more balanced for me, I think.
Nice composition, and it does feel nice and cold. I think there could do with being some darker areas, just to add some contrast, but it's alright how it is. 7