When I first looked at this I also wondered what it was. For a close-up shgot of a clear glass pitcher or vase, you did a good job. I like the crisp detail looking thru the glass. It is distracted some by the glare on the right half of the pitcher. This could easily be edited with a lens filter or in photoshop, to enhance its artistic quality.Overall a good shot and shows you are not timid about using your camera to capture creative posibilities. Keep shooting more please.
The glare is what keeps glass from being a colorless gas that isn't detectable by cameras. I enhanced it using a program similar to the one you suggested I should take it out with. :-)
Well done, but I haven't found the answer to my question yet.