A few suggestions (plants not specific as don't know where you are) ... Think I would paint door, door frame & posts just white. Shutters, one of the greyed teals. Explore color on one of the paint mfg. websites where you can upload photo (a better one w/ less shadows) and see changes ... like @ Valspar.com.

Oh. Like magic. :o) For sanitary reasons, I’m not sure what you could put there. How about a couple of floating shelves on the wall up above? If you don’t need the storage/display space, I still think just an art print would do it. It is a bit of an awkward spot but its location right next to the toilet kind of gives it an ick factor. Sorry I’m not more help.

I wonder if you might be happier if you had trim around the doors and molding along the top? That might give it a more finished look. It’s hard to think of putting anything up there not knowing your decor style.

It looks amazing already, it really does!!! In front of the radiator you can do a bench. But other than that leave it empty. Add some art that speaks to you. What do you like? Big family photo? A painting? Maybe just a mural art with molding around it to frame it out... so many options. I’d also add some new pillows with more color. Black, Blue, brown leather....