Interior Designers Swear By This Formula for Creating a Sophisticated Space

I recently moved to a new apartment in Los Angeles, and ever since Ive been on a mission to make my home feel not just cozy and inviting, but also sophisticated. I tend to stick to neutral color palettes - my living room, in particular, has white walls and a white sofa - so I was looking for ways to add some intrigue to the space through texture as opposed to color. I just wasnt quite sure how or where to start.