I don't think painting is the way to go. You don't show your furniture, except for the side board which would look great painted, but white slipcovers would be fun with all the pine.

Painting the brick white would look nice.

P S. I wouldn't do a pine ceiling in a screened in porch. Too much exposure to weather.

What about tin?

Thanks, I love how the painted brick looks here.  I do love old brick but this brick is not my favorite.  I wouldnt paint any of our actual wood antique furniture, I would like our nice pieces to standout more though and not blend in to the wall!

What is your flooring?

Flooring is faux wood vinyl in these rooms and bathroom on main level, pine everywhere else. Couch is blue velvet and I have tried to add colorful gallery wall above it, white coffee table. Will try to add pic showing more of room(s) gor input, appreciating everything so far!!

I would keep the ceiling and paint the walls.

I generally would favor painting the ceiling and leaving the walls, but since you want to showcase your antique furniture (assuming you have other pieces besides the sideboard shown here), then lighter (or at least non-wood) walls would be the way to go. If you don't want to commit to paint, since that will be fairly permanent, you can also think about using thin wallboard over the pine and painting that the color you want. I might want the wall behind the sideboard painted and if you are open to painting the brick, then paint that, too, although you're going to have to love how your woodstove stands out against painted brick.

Velvet furniture in that space does not work in my head but then neither does fake wood flooring. I need to see the whole space with the furniture for sure. I have to agree about painting the walls and I would not paint the brick behind a wood stove.I see your dream home in your idea books maybe try to get some of that feel in this space with the white walls but I think maybe a tile look flooring to replace the fake wood.

As much as I love knotty pine, in this case I’d whitewash it. I’m picturing something like this:

https://mainehomedesign.com/features/2419-rustic-update/

If it was a lake/vacation cabin, or the wood was very old, I’d probably feel different. But in your situation, I think a lighter look would be preferable.

If you are talking about the sideboard, I understand you wouldn't want to paint an antique, but your sideboard is circa 1930. Try googling the description and see if you see an inspiration.

Design Life: Contemporary Chalet; Sarah Richardson will give you great before and after of what white wash does. YOu decide.

I love Jinx's inspiration photos. I would definitely paint/whitewash the walls. And although I do like many painted vintage pieces, I wouldn't paint that beautiful sideboard.