From my point of view the library looks quite odd looking the material could be recreated, I’ll try adding things that are related to a library or used throughout the entire build I would always use reference images to gather small ideas to fill in the empty area within your build it should fit the theme your normally going for.
The image doesn’t show much put into it however I can say it’s still a work in progress build I’ll try throwing things that are related to a library (quite places, a social place for interaction or reading ect) try placing a few smaller item around plants, I’ll try to not overdo the objects since it’ll look to cluttered with random items placed in random area.
My only recommendation would be gathering image of the things you need ideas from. Doing this will provide you with some ideas to implement to your map. I’ll try switching up the materials and use some proper color pallets.