"Wow, very clean ... whatever it is", I think.
Nice concept, I think I see a drain in the upper righthand corner, but it still is abstract enough for me not to recognise what I am looking at.
But I'm afraid that despite the well chosen DOF my eyes keep wandering to the bright spot above the water and around the lines, trying to figure out what this is. They can't seem to focus on what is in focus here.