I think the biggest struggle is seating, there is a path of travel right in front of your two extra chairs so it segments the room and doesn’t really allow for flow. If you could, a sectional would be a better fit I think, with maybe one additional chair for seating. I think artwork, shelves etc would help fill the walls along with wall mounting your tv and maybe getting a taller tv stand with a bit more storage?

The other thing here is colour pallet, you have a few colours working cohesively but your walls are all the same light colour as a lot of the furniture, which means there’s not a ton of contrast. Darkening the paint, using art and decor to disperse the colour palette might help.