Add large mirrors to make the room appear larger.

I rarely comment on room decor advice because I am not an expert - but in the photo - and this may just be the picture, the lighter walls look streaky. They may need a second coat of paint.

It appears to me that you are looking for a dramatic dark dining area - and then have the small fan light fixture - replace with a dramatic light fixture. Add colorful art to light walls either in dark frames or that have some dark areas in the art itself that relate to the dark wall, but that overall have lots of color.

Your room is long and narrow... those rooms are hard to decorate, and I know this because I have the same kind of room!

The main thing to focus on is emphasizing the width and height of the room, and not the length. I like the idea of the accent wall because it stops the eye (which is a good thing) but I’d pick a closer color for the other walls so that it’s not as much of a contrast.

If the time comes to pick a new table, I’d think about maybe a round one instead, if one fits. Round shapes fool the eye by not emphasizing the narrowness of the room.

The other thing I’d do is find some patterned rugs to separate the two spaces, living and dining. I find that pattern is very helpful because it gives the eye more to look at overall instead of just, oh, the room is long and narrow.

Do you need that much seating regularly? If not, I’d remove some of the chairs... I’d even try the table against the wall to see what it looks like. If it works, then you can hang a picture on that wall over the table, centered.

When you are looking for accents like lamps... think tall... again, you want to emphasize the height of the room.

That back wall is challenge because of the door. Smart to paint it a color that blends. I’d think about maybe painting a stencil on the door and then a matching one on the wall so that it gives a feeling of being centered. Then an asymmetrical arrangement in between.

It depends on what you like! Mirrors can help you make the room look more spacious and pictures and art will add life and color to the room. I really like your dining set, but I think the living room furniture is too big for the space. Something smaller and with legs will fit better in a narrow space.

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Does this room have to be your dinning room and living room? I think it might help to see the room from a different angle. I also think with the size of this room having lighter walls may help. If nothing else I think the white walls need a second coat of paint. If you could place the dinning table somewhere else and use the fireplace to your advantage you could place a nice piece of artwork above that and maybe add some chairs by it.

Another picture from the door in would be super helpful. At the moment, as mentioned above it looks like there are streak lines and perhaps a second coat of paint is needed. Also, it feels like theres too much going on.

In my opinion, that dark wall and door make the room look small and dreary. As was said, I would paint all the walls a warm white or at least the same color. Then I would look for some light, contemporary art work for the walls. You do need color, but I would look for it in the artwork. The only place that I think a mirror would work is that back wall, not the sides because there is nothing to reflect. Looks like your TV is mounted too high.

I would use wall art or photos on accent wall because there is light and one big or some small mirrors on other wall , plus center piece on a table.

Get a rug, accent pillows, throw and put lamp on side table. Wall art is above the sofa

who painted the walls? is this an illusion in the photo? they really need another coat of paint.