I've used a lot of yellow/gold and darker tan colors in my home. Not Ben Moore, however. The only caution I would give you is to be sure that the tan and beiges you use have some warmth to them. There's nothing worse than a yellow next to a pinky beige.

The problem in your room is the terrible quality of like from that fan light. Turn it off and NEVER TURN IN ON AGAIN. I would take advantage of the lamps you have on your mantel and the piano. See if there is space for a small floor lamp next to the leather chair in the corner. Consider fishing the electrical cord under the rug to activate small floor lamps that can be placed next to your sofa. This floor lamp slides under the edge of seating to be very minimal in the room. https://www.crateandbarrel.com/clare-antiqued-bronze-floor-lamp/s406236 Replace the fan with a ceiling fixture. Consider changing the color of your rug on the floor.

--Paint living and dining rooms a warm white so they all seem to be one space. (I can't tell what color walls are. Next time, show well lit rooms in daylight.) ----Long, low white shelf/cabinet across the entire TV wall with just TV above since it's so large. This will streamline the room tremendously. No art around TV since screen. Relocate favorite art pieces--not decor items like mirrors or clock--to a gallery wall in dining room--best art works only. Lose the big blue bottle and other "stuff" on the floor. The room needs something call "negative space," open areas that add airiness to a room. It takes awhile to get used to negative space, but it feels calming after a while. --Move corner chair to face the other armchair with floor lamp in that corner to the left of TV. --Get a rectangular coffee table up on legs so its reachable from all seating. These gives you a conversational connection. --Remove side table and table lamp. It's blocking flow, which is stressful. That will make a bigger difference than you think. This way people can move around the couch from either end. --Sorry, but declutter all stuff from dining room as well since it adds to the visual clutter of both rooms. --Put smaller round dining room mirror by front door with a shelf there for keys, etc. Having a funcitonal place for practical items is destressing. --Remove living room mirror entirely. It's is too big and reflecting all the clutter. --No plaid throw hanging off sofa. If you need it to curl up, fold it in a nice basket. --

Does the sectional fit comfortably in the room? It looks fine, but sectionals can create layout problems when working with a small room (which yours looks to be from the photos). A floorplan of the room with measurements and the measurements of the sectional (or a link) would help on that front. Are you able to take a photo of the sectional in the room? That is the other thing that would help us assess whether it works or not. When I see people complain that their room isn't cozy, it's often because they have skipped over coffee and end table and table and floor lamps. The absence of these makes a room seem stark and unwelcoming.