Very nice room. Did you try it in the corner? Can the sofa go back a few inches? Can the shelf unit go flat against the wall or is it too wide? Flat will create visual space

What do you use this lamp for? Seems you have nice overhead lighting and if you are just using it for reading you could find something much smaller. It is a pretty lamp but I think it makes the space look too crowded. A nice MCM reading lamp / pharmacy light would be a good nod to your MCM chair.

Put it in the corner where it will light up both walls. If you can move the sofa back 1"-2" that will connect sofa and light plus provide some reading light.

I really want to put a lamp in that spot. There needs to be clearance behind the couch as there is an entryway right behind it—so it can not be pushed back any further.

Maybe something like this would fit better?

Moved the couch back an inch, and moved lamp to the back corner. i think this is better…

I rather liked it the other way, it looked styled. This looks like a lamp in the corner. The bookcase is the rouge not the lamp

For the Christmas tree where that bookcases for now and then after the season is over replace it with a nice big plant

That looks good!

Can we keep playing with your space? It's a pretty tight room, so consider getting a tall narrow bookcase, gold finish to echo lamp, that would face straight out to the room, if you need a bookcase. (Match finish of bookcase to lamp. It looks like brass on my screen, but maybe it's light wood. I pulled this photo from Amazon.)

The current bookcase makes the room look more crowded than it needs to be. The diagonasl placement cuts off visual and actual space.