Composition: A good simple setup without distractions. Nothing spectacular but it concentrates on the glasses to show the refraction.
Lighting: I think there is a bit too much contrast. The paper is full white and the border of the glasses is pitch black. I think a bit more nuances in lighting would improve the photo.
Focus: The DOF is very wide. The letters in the background are still pretty sharp. Did you try a more narrow DOF? I think that would look better, but that's personal preference. I can see some strange pixels among the letters in the shade of the glasses. I don't know if ot comes from oversharpening in postprocessing but it looks like that. Also did you use some kind of despecle filter? I would expect more detail in the sheets of paper (at the botom of the photo).
Challenge: Yes, challenge met. You actually show an attribute of glass. I like that more than some of the other photos which seem to contain a glass object for the challenge but the photo is not really about the glass.
Creativity: I think the photo lacks drama. It's not a bad shot but I miss something which makes it special. Maybe a ring with a fine engraving in a dark language could have helped ;-)
Ah Lord of the Rings!!! That's an extra point just for the choice of book you used :-)) I like your set up and the effect through the glasses works very well.
Very nice and clear image. I like the angle from which you took the picture, and the way that the glasses lay over the words. This adds nice interest to the pic.