Can you post a few more pictures showing all four sides of the room? From what I can see so far, I would replace the ceiling fan with something white/unobtrusive, remove the bench under the window, and move the small table from next to the sofa to in between the matching chairs.

I think a nice console table in front of the window maybe with a lamp and I do not like family photos in entetainment spaces so maybe hang those in a the hallway going to the bedrooms and get a nice big piece of art you love to replace those . Move the chairs further apart and add a table between them the see if drapes are needed sometimes they just add that bit of class and warmth to a space . Some nice linen ones could work full enough to be full even when closed and IMO even that full if you never close them . I like 3x the width of the rod for sure.I might even choose to hang the TV on the wall with a caninet below it on that wall where the pic are and turn the sectional to face the new TV space then see where the chairs can go . I do not think you need more furniture just a better layout.

More pics please. all the walls and go stand back to fire

At first glance? Not more furniture, different furniture

A nice generous round cocktail table approx 36 inches diam

GET RID of the pie crust table to another room - suits nothing else in there.

What is in the foreground on the right??

Move the two swivel barrel back to the window, find a different table for between, add a lamp

No need for the bench ( a hallway? )

Too many same pillows on the couch, take two and use on the chairs. Those need a jooosh, pattern on the couch, does not mean all solid elsewhere

ART........ Right of the fire, and the cluster is too busy,.

Family photos are best viewed up close and a few on table tops will do it. : ) Hallway passages are excellent for family- always an eye level view and close.

It isn't about what I like ( stop it up there, please??? Nobody cares what you "dislike" ) they simply are more advantageously viewed and the wall needs a bigger bang .

Come back with all four angles

Move the tv if thats an option

Move the TV to one of the walls. It will allow you to install a larger screen.

Here are two layouts for the room.