Need help filling this area

[bedrock] I need suggestions on what I should put here

Okay does empty area of terrain right here is next to my librarian build I need help on detailing this area for the reason that I have no idea what should go here like at all as like outside exterior for a reason that this original spot was where my nether portal was in a different version of this world but I'm going to put my nether portal at the very end of this area And except for that I really don't have any other ideas

On what should be here since how I terraformed this village It's directly different on how I terraform you the first time around so there's like a lot more extension areas that are just empty