God thats beautiful, the middle just looks a little bare, so maybe a table or desk or counter or sumething in the middle with papers/documents spread across it. Similar to a Kitchen Island.
https://www.google.com/search?espv=2....0.P47LRVQgDxQ
And maybe a bookshelf idk.
Can you maybe change the floor as well, to actual flooring rather than the default mod floor.
Maybe possibly a ceiling fan or lamp what ever you want. Just something on the ceiling that goes with everything