I'm trying to get ideas of how i can get better acoustics in my living room whilst having little or no money. The room itself is 22' x 11', with the speakers agains the short side. Flooring is Karndean acrylic tiles, with a decent size mat in the middle of the floor. At present walls are unadorned, and your standard plasterboard ones that new flats are made off. At present, the best way i can describe sound at present is fairly shallow and echoey. Would even just adding some pictures to the wall improve things significantly? All recommendations welcome!