Pretty simple topic here. Each of these living spaces have mixed color, pattern, and texture well. Yes, they started with good bones. Meaning the sofas have nice shape, tufting, colors and patterns. But I want to draw your attention to the details. The accent pillows, the framed art with objects mixed in (second to last photo), books, bowls, trays, flowers, driftwood, that little bronze squirrel you found at the flea market...the details...ya know?
I would encourage you to do this. Take a photo of your own living room. Then examine the photo. What do you think? Could it use a few more details? Think pattern, texture, color. Does it need a shiny object, a textured pillow, or a patterned rug?
P.S. I am helping a friend redo our "Mama's Sofa," the nursing mom's room at our church. This weekend we are on the hunt for a sofa, and hopefully some of the details to make the room feel like home.