add interior inside this dark room which i highlighted with red circle take into consideration next information in has tom be a conference room there keep sloped ceiling it has to be a wodden planks on the ceiling keep window reflection with all the grass and trees on it not necessarily but color temperature can be similar to restaraunt interior on the left do not change original window size and design you do not really need to show the whole conference room interior just that part what we can see from the window do not put anything on the wall like tv or etc
