how about a window? or a pot plant in the corner, lamp, plugs, a painting on the wall ahhhhm more cutlery so far the poor people in you scene have to dine with a knife only. You could move some of the glasses, chairs, plates etc slightly to break up the symetry a little. Maybe your people are having some wine on the table? Or flowers. -just some ideas, but I don't think having the tablecloth intersect with thechairs will enhance the believability.