It turned out very beautifully, and I like the very idea of implementing the library as books. If I did it in life I would add a couple of references like Kanye West: World Leader, I even found such an essay on https://samplius.com/free-essay-examples/kanye-west-world-leader/, so I think it would fit perfectly as a chip on the front of the building. Or you could put a portrait of someone which is also a kind of reference, just have to do it in a cartoonish way.