Underground Library

Any of you just wanna have a HUGE library in your world? Before I ever knew about MC Edit, my friend and I had to personally clear blocks one by one and replace them to make this library, so it took longer that it was suppose to. Please tell me how you think of it!

P.S. Sorry if the place looks a bit boring from the entrance, my friend and I put a lot of work into the library :). Feel free to decorate anything in the beginning!! oh btw...there's a hidden door....ssssssh