It’s not as wide as it appears in the picture.

I think it "is what it is." I'm not sure how you'd jazz it up, other than to add woodwork and a door. Or are you looking for help with the areas to the right and left of the door? If so, additional photos of those areas would help.

These are not DIY suggestions

Add some trim to the sides of the opening and a header if possible. Paint the inside room a darker color so it pop!! I would also remove the striped curtains. When you put a desk, set it at the angle of the door if possible, so the room looks like an accent peaking through!!

All the best,
Ruchi

Not directly answering your question, but if the view into the room was more appealing the doorway would become a nice frame without changing it. Imo adding more to the frame would enhance the cat tree and not improve anything. What are you using the solace for? Is there room for a nice plant, table and or nice rug? Could the cat tree be tucked into a corner out of direct visual sight?

You are very fortunate to have an extra room! The first thing that I see is that harsh light. You need to keep that off and use lamps only. I would keep the litter box and cat tree out of sight. I would put a comfy upholstered chair in the corner by the window, put a small table and lamp in front of the window. Then I would remove the window shade or else cover it with sheers. Paint the walls a neutral color and get a colorful area rug. The final touch would be art on the walls.

Agree with grapefruit and qam and Diane.

Use the doorway as the frame that they suggest.

You could start with a little vignette in the viewable corner like grapefruit details. It doesn't take much. Move the current items in the doorway view to either the other side of the room or find another home for them, This is the room at your entry right? So it forms the first impression of your home.

Here are a few insp pics showing small vignettes that work IMO

^Small but with big impact. I don't know your style, this is just an example of chair, lamp, side table, rug and pillow. That's all you need facing the door. The items you choose will showcase your style. And you can get some of these or similar items at target if you are on a budget.

^Or you could do the writing desk and chair with rug and lamp. Very simple like you had planned in the beginning.

Two chairs and a side table with lamp in front of the windows would be very inviting. You don't have to go high end if you are on a budget.

It is a room off the living room of the middle floor of my townhouse. I’ll post more pictures from other angles. It’s my first house so def. on a budget and it’s not very big (the entire townhouse) so not too many places to put the other stuff. Making it work until I can afford my dream home. :-)

Very nice pics of your rooms. Love the charcoal sofa and the unexpected blue and purple accents. Your home looks very warm and inviting.

"the doorway is just so empty and plain"

It's not the doorway, it's the VIEW through the doorway that is the problem.

As soon as you get a desk, rug, bookcases and a reading chair and some wall decor in there, the problem goes away.

Thanks. Your right. Not that I really have a theme or style in my house but should my rug, furniture, curtains match the adjacent living room or be it’s own thing?

My feeling is that everything in your sight line should work together. That doesn't necessarily mean they need to be decorated the same, just not fight each other. You could take the color palette from the living room and mix it up in the office--paint the walls blue and have black and gray accents, for example.