This isn't exactly a flooring question, but it involves wood surfaces, so I thought you all may be the most experienced and informed to ask. We have a 1924 bungalow with all wood walls, ceilings, and floors upstairs. It's tongue and groove pine, perhaps longleaf given the area in which we live. One of the bedrooms had old liner and wallpaper over the wood walls and ceiling, so I had to steam and scrape. The wall liner had been glued and nailed, so in the end it worked best to hand sand all the walls and ceiling with a random orbit sander on 80 grit.

My husband and I really like the look of the simple, exposed wood in this one room. The knots and grain are interesting, and I'm going to keep the rest of the decor very simple (I did paint the ceiling with one coat of flat off-white, just to brighten up the room and keep from wood overload). The question is, what do I need to do to finish or preserve the pine walls? The wood tone does lean just a bit toward the orange side, so if I could counteract that (or at least not enhance it), I would be happy. Is there a wax, glaze, or rub-on finish that would bring out better tones? Is the pine going to get more orange as is ages? It's been about a year since I did the original sanding, and it does seem to have darkened just a bit (but it could be my imagination). The walls don't have any splinters and feel smooth enough to me, but was 80 grit too coarse as a finish sanding?

Here's the room (please ignore the floor; it was only originally finished on the outer perimeter and I haven't gotten to refinishing it yet):

Any advice or pointers would be appreciated. Thanks.