Make your room comfortable for your family . Use all the resources you have to accessorize and individualize your home. Similar items grouped together make collections that look larger, more interesting, and more important. Most people try and find a wall to group their family pictures. Others have hobbies they can display like collecting plates, dolls, spoons, birdhouses, etc.
Large pictures are expensive.
I have quite a few, because my mother was an artist, and they were passed down to me. When you don't have any large enough to balance the wall behind your sofa, use groupings of items that look well together. Don't overlook creative collections of your children's artwork, and other meaningful objects from their young years. Family activities, like vacations, can also be showcased. Little quilts made from past clothing can be displayed.