My thoughts:

- I don't think the light fixture is the problem in this room --I wouldn't bother to change it.

- I think the problem is that you have a bunch of neutrals, and they're fighting with one another. The staircase is lovely, and the brick wall is lovely. The floor is ... eh. But the big issue is that these three items don't match one another.

- Of the above mentioned items, I'd most like to change the floor -- but I realize that this is expensive and may not fall under the venue of "facelift". As such, I suggest a rug. I personally would go with a red rug, but your taste in color may differ -- it just needs not to be a neutral. It'd hide the floor and bring in a much-needed pop of color.

- The table seems to be too large for its location. I'd look for a smaller table -- or simply a built-in shelf in that spot. The trunk seems to be too large to fit under the table.

- I like the pot belly stove -- it's unexpected and interesting.

- I don't particularly like the cabinet -- though I would like it in a different location -- it's somewhat underwhelming as a focal point dead-ahead of the door. Any chance the table (which I like -- I just don't think it fits in that spot) could go in its place?

Agreeing to remove tall cabinet [next to stove] -- and try 30-yr. table there.

Chest esp. if flat top - try as end table somewhere.

This could be helpful, cause chalk paint / changing desk finish is being discussed:

[https://www.houzz.com/discussions/what-to-do-with-this-desk-dsvw-vd~5084923?n=47[(https://www.houzz.com/discussions/what-to-do-with-this-desk-dsvw-vd~5084923?n=47)

For your door, and new rug / removing clock and maybe chest I guess - this type? Includes a 6-inch long rod / 19" across.

19 - 21" large in zinc finish more like your elements...

I agree with relocating the tall chest and items around it and putting the console table in its place. Above the table, add a piece of art with some color. I'd repeat similar colors in a larger entry rug. Consider picking up a color that's already present in your adjacent living areas. Since I don't know what that is, I'm just going to add a couple of random examples below. On the light, I -never- leave the standard builder flush-mount. Look for something that adds personality. Could be white wood/rustic, copper, etc., trendy but not too modern. It appears from your ceiling height that you can go longer than flushmount, but measure on a ladder to determine the appropriate dimensions. The one I've attached is 20" wide and tall; that may be too big for your space, but something of this style should work.

https://www.overstock.com/Home-Garden/Safavieh-Baldwin-Transitional-Ivory-Teal-Area-Rug-6-7-x-9-2/15199204/product.html?recset=7338416a-ef67-4858-b45e-99a233ee8338&refccid=RLWLRUMKZSRLYVCGV2FDA7N32A&recalg=872,873,839&recidx=1

Canvas art

Light fixture,

I agree that a rug would look nice there. I'd probably remove the tall cabinet and stove and look for something larger (but still small scale) that could hold coats and whatever else is piled in the corner (I assume a hall tree, but can't really tell). I'd then look for a nice, larger piece of art that you would be happy to view each time you come down the stairs

If you're happy with the size of the table for that spot, then I'd probably change out the mirror for a new look, a bit larger, and find a new home for the chest. If you want something under the table to disguise the vent, then maybe a couple of baskets. They could hold shoes or gloves and hats...whatever you may need by the door. Or just be empty. If you don't really want anything under the table, you could paint your vent to match the wall and it will recede.

If you leave the table, I'd look for a taller lamp there and find an accessory you love in place of the ship. Lots of good suggestions for light fixtures already made.