Move the sofa with the Bach to the double doors floating it in the room, put the tv opposite move the chair down the wall some to where the tv is, get a very large rug and put it in front of your sofa with the front legs sitting on it,add panel curtains to your windows hung high and wide to make the windows look tall add some color with the ruh throws and pillows, then art would help to,here are some paint colors if you decide to paint