Do you want to see outside at night? The only way I think you could do that without people seeing in is to light the area outside and put some reflective film on the outside of the window so it's kind of like a one way mirror. I put plantation shutters on my large windows in the bath so I could open or close them easily. You could have shutters only on the lower part of the window and open/close as needed.

What about a bespoke stained glass window? They can be custom-made allowing small areas of clear glass so that you can see the view but other areas can either be white on white or clear and textured and with many different subjects. They can of cause also be beautifully colored, enhancing the room and the view outside. Stained glass windows can also be sandwich inside double glazing.

Get a plantation shutter, and simply tilt the blades to allow view, privacy, and light. Yes.......all three at the same time.

As gardenbling suggested above, I did a similar project 30 yrs ago in our master bath. I designed leaded glass inserts with opaque and cut/beveled glass which then put into a simple framed shutter. So I had the option of opening the shutters and seeing outside into the garden and privacy when closed. You can design whatever you like...simple will keep the cost down naturally. I think I did something with 3 diamonds....hard to remember back then! I didn't have any color involved which it easier to work with any decor/colors. The lack of color played up the cut glass and gorgeous light streaming though..like prisms. Here's an Etsy page that shows all sorts of combos.....https://www.etsy.com/search?q=leaded%20glass%20panel&ref=auto2&as_prefix=leaded%20gla

Just remembered these films. Same idea as my glass shutter above but using these films would give you the exact same look as the beveled glass for a LOT less cost. These are INCREDIBLY beautiful. I have used them twice now, currently have a small diamond/prism pattern on our front door sidelight. It's like a fine crystal. They have 2 types: an adhesive and a cling film. I've just used the cling...and yes, it does! Here's one that would be beautiful; you could use on plain glass in a framed shutter as I did or just on the window itself but it seems you want the option of seeing out sometimes as I did. https://www.decorativefilm.com/solyx-sx-1730-rhombus-24-36-or-60-wide

What wonderful ideas! I can't thank you all enough. I am thinking right now that I can use a combination of the ideas you all shared. The beveled glass film or a reflective film and either a shutter of roll-down shade. The atrium outside is something I do want to be able to view, even at night. I am hoping to add to the water fountain feature some additional items like beautiful stones and plants!

The frosty film would work fine, but the one-way reflective films become transparent to people outside at night when you have the lights on, so you would still need something for after dark.

ETA Wow, jama, they have some beautiful patterns for those films.

So true. I did consider that and started wondering if there is any way to combine the reflective one with the pattern...? The patterns for the films are amazing. I am considering the one in the link posted by Jama7 for the front door which has clear glass panes!

bloomz...Let me check outside when it gets dark and see what I see. I think it rates pretty high on the privacy scale. I'll get back......

Bloomz.....Well, it was icy last night and being on crutches, I decided to wait. I'm curious too since I'm considering using the film on a large shower window. I'd love to avoid the expense of waterproof shutters. I'll try again!

How will you see out at night if you put decorative film on the window? Or in the day if you want to? I think someone posted this product or one like it on a thread a while back. I'd be cautious of mirrored film because of daytime bird strikes, though, or take steps to protect the birds if you use it.

http://www.contravision.com/all-products/privacy-window-films/

There are one-way decorative films so you can see out and others cannot see in. There are also blinds you can get (from Budget Blinds or other suppliers) that are pleated accordion fold top down or bottom up that have both privacy/blackout and semi-transparent fabric so you can pull up just the transparent fabric to let in light, or pull up the privacy to have privacy or open the shade completely to have an unobstructed view.

Rabbitgoo 3d No Glue Static Decorative Privacy Window Films for Glass Non-Adhesive Heat Control Anti Uv

Many selections on Amazon

What great ideas. I am so grateful for all of your valuable input. I do want to see outside daytime and nighttime. That is important as there is a zen garden I would like to create there. I have 2 new photos from today! The wall helps with privacy quite a bit...I just realized it is about 5 ft., maybe 6 ft. high. It is the second wall on the side of the home a little peak of the window at the top can be seen. So the cover does not need to have texture, just a bit of privacy just in case (I'm a NYer)...so I'm excited about creating a simple application that maintains privacy! We will be creating a pathway on this side of our home that will be used daily for the people who will be assisting with the care of our elderly parents. Thank you so much for your contributions!!!

Plantation shutters are dust traps. Ripped mine out several years ago. I have woven shades. Easy to vacuum. Just order another set for master bath but with motorized function. Hard to open at night and weekends climbing over a tub. Can't wait. I think they soften a room. Bathrooms with woven shades look spa like to me.