I always want to know first what do you need from the window coverings? Do you need privacy, heat and UV control or just decor? Those all require diffrent solutions IMO.I see what looks like paint tests around the windows so the new wall color will drive choices too. You have busy space so what ever you choose will need to be simple . So a bit mor einfo posted here in a comment DO NOT START another post .

Do you actually NEED window coverings? If there's no one behind you or they're a distance away there's not really a need for privacy, so leave uncovered unless you need to block out uber-strong light.

I think it would look terribly unfinished if you left the windows blank.

It looks like you might have enough room on the windows for some inside mount roller blinds (like Duette shades?). Can't tell if the sliders would have enough head room to do that also?

I am wondering what the width of the small side windows are?

you didn't say whether or not you needed privacy...

I would want to at least cover the doors but I do hate when doors/windows are big black expanses at night (just feels less cozy) so that's a me thing

We don’t have any treatments on the kitchen windows, or the sliders looking out to the backyard in the den. Seeing as there is total privacy, we don’t see the need. Our windows are fairly new, double paned and air tight, so we don’t need curtains or shades to keep cold out.

Kitchen cabs are medium stained wood, floors are REAL stained wood, as is the furniture throughout the home. There aren’t any white walls, anywhere. There is an ever present warm, cozy vibe. Colorful area rugs add to the cozyness. The bare windows are hardly noticeable, day or night.

Do what works for you and your family. If bare windows make you uncomfortable (despite what appears to be total privacy), I’d suggest fabric shades, vs curtains. I’m just not a curtain person.

All really good questions. The first picture is the daylight with light cream paint is the new color. It used to be dark gray and felt finished but now that it’s light it feels unfinished, like it’s missing something. Those are new windows & sliding door so no need for protection from the elements. We also backup to a forest BUT have no fence so i feel a bit paranoid someone could always be looking in. If it doesn’t look “naked” and I just need to get used to it, then I guess no window treatments. It has always drove my mother crazy 🙃

I have no window treatments on my slider or bay window on the back of the house -- there's no-one behind me. Doesn't bother me one bit, never did not even in my other house when I did have someone behind me. It would bother me in the front of the house if cars and strangers passed by often, but not in the back. What are you doing in there that you're concerned about the slim chance someone is looking in? Bedrooms and bathrooms are another story but for living room, kitchen and such -- I like having no window treatments, it lets in the sunshine and I can enjoy the lovely view I have.

Your doors and windows are lovely.

I like the example by @Lyn Nielson above. You could open the curtains wide in the daytime but pull them closed after dark if you wanted. I’d pull them after dark but that may be just me - I watch too much Dateline. ☺️

Just plain solid color curtains would be great.

I never like the look at night of undressed windows--the "black hole" look. So even if you don't need privacy, light control or have temperature issues, a room always benefits from something decorative on the windows.

What you can do depends on how much the windows are recessed--if there's enough room you can do inside mount shades. But these will impair your view outside. If you have enough headroom you could mount something on the molding above the windows. A patterned fabric is always nice to add interest. A sheer will allow light and views and can soften the hard edges of windows and doors.

Here's a sheer with a pattern:

First floor renovation of a traditional home · More Info

A cornice mounted above the trim:

First floor renovation of a traditional home · More Info

Inside mount bamboo shades and curtain panels:

Hamptons Beach House · More Info

To avoid the night time black hole string fairy lights on the deck or the gazebo.