Artificial Plants
Where do we even begin with this one? An artificial plant in your living room is not the best choice as it spells lifelessness and negative energy. If you cannot add a real plant to your space, then go without one. You can probably add cactus to bring a little color and life. Put it this way: how do you feel when you go to a restaurant and find yourself surrounded by fake plants? You might think that your food will not be very authentic.
Common Pieces of Art
Complement your living room with a piece of art that no one is used to (if you want to add one) as it is too flat to use a cliche piece. Instead, opt for something that is in the same theme as your living room space. While everyone loves an iconic work of art like Stary Night by Van Gogh, it is so cliche at this point that people will sigh when they enter your home and see it hanging on your wall.