I have to say, the image that struck me the most here was the Toclafane; I'm not even sure why. Possibly the idea that Gwen was last, or that she would take refuge in that room; possibly the idea of that being the first time she heard speech there.

That said, the entire thing is... fantastic isn't the right word, exactly. I'm not sure what is. It's... finely crafted, and well executed, but it's not like I expect anything else of you. ... Perhaps that's the measure of an excellent story: that it inspires unvoiceable emotion in the reader.