Argh! Poor Library Pony looks so hurt, so pained, and more from being abandoned so quickly after Castle Pony sauntered by. Sure, all three look very nice, and I like the design for Castle quite a lot, but the theme and mood overpower even that (which is a good thing). It's a very moving piece.

(And I too really preferred the tree library to having a big crystal palace. At the very least, it would have been more meaningful to let her and all her friends to mourn the loss for a while. Too bad in any case because there is a great picture of what Twilight Sparkle's library would look like after growing along with her, and I was really hoping for something like that.)