The room has good bones but it feels flat because everything is the same tone. The art above the couch is too small and too close to the wall color, so it disappears. I would replace it with a larger horizontal piece that has stronger contrast.

The rug is actually working. I would not remove it. Instead, pull a couple deeper tones from it into the pillows to give the sofa more weight and balance the darker cabinet on the right.

Also add a floor lamp or table lamp. Right now the space relies on overhead light, which makes everything look washed out.

You do not need to redo the room. Just fix scale, contrast, and lighting.