A LOT !!! more fabric and continue the sheers. Do custom, don't attempt multiple panel add ons

Sheers need fullness when pulled closed

" Should I add some type of peel and stick frosted glass? "

Definitely not!! I would rather look at the limited view than crappy cheap looking privacy film.

Agree with Jan, just do a full window of full sheers and leave them closed.

I would add a trellis or a fence topper and leave the inside the way it is.

there are many kits available online.

If you can plant there, even one tall shrub or dwarf tree will look great. If you let us know how much light it gets, and tell us approximately where you live (largest big city) you'll get some recommendations.

Sheers will cut down on the light entering the room.

I think working on the outside would be preferable to blocking the window, even if you're using sheers. Greenery on the fence works wonders.

Keep the light! Show now if what’s pot there/ down there, in case there is something that could be punted but is not fussy( meaning looks good most of the time.

It's mostly use at night? Yes?

sheers throw light back into the room

You do not have the best rug for the space, either.....depending the real color? Which is what?

Everything else is geometry! Add some movement in a patterned rug!

Get some art on the walls, add the sheers, dim the lights, change up the rug.set the table aglow....

Nobody is looking at the fence in the dark of evening: )

I would take the curtains off completely; it doesn’t look like you need them for privacy at all, and the existing curtains are just framing a view that you don’t like! The window is very interesting with the arch and height. It is a nice feature by itself. And your view is sort of like an urban view, even if it isn’t - and there is nothing wrong with an urban view. I like your chandelier, it works very well. The rug is nice, too. I love plants in a space, but imo the plant is also drawing the eye to the window. So I might remove it from that location. Mainly, I would definitely clear away the curtains and maybe just leave the black sculpted piece there. And bring in art. Any art you like.

You see this is very sloppy, and I wasn't able to really remove the curtains with my scribble - but this is the general idea -

Just let what’s going on outside fade into the background. Let it take a backseat to what else is going on in the space.

What about something outside that is mainly sculptural along with plants?

Garden Screens Fremantle · More Info

Or someting like this only inside?

Buena Vista Residence · More Info

Or move your plant in front of right window and your pottery display riser in front of left window. Both will stand out in front of the window, yet you're letting in maximum light.

Outdoor sculptural privacy screen from Etsy:

https://www.etsy.com/listing/1251160483/outdoor-privacy-screen-and-garden-home?ga_order=most_relevant&ga_search_type=all&ga_view_type=gallery&ga_search_query=fence+art&ref=sc_gallery-1-12&sts=1&plkey=69aa37c1ce976c7de139a8b5236d76ace9d34ffd%3A1251160483&variation0=2896503529

Some good ideas already. One of my favorite ideas for hiding stuff like this is potted bamboo. If it would be evergreen in your area. Use only clumping bamboo so no worries about invasiveness. You could have a bench built to raise them off the ground and give you a head start on height.

It's really pretty lit at night, too.

https://www.houzz.com/hznb/photos/tree-of-life-backyard-eclectic-landscape-seattle-phvw-vp~156198810

https://www.houzz.com/hznb/photos/abstract-silver-metal-garden-sculpture-looking-forward-by-jon-allen-modern-landscape-miami-phvw-vp~9152333

https://www.houzz.com/photos/contemporary-landscape-contemporary-landscape-little-rock-phvw-vp~4198148

https://www.houzz.com/hznb/photos/alameda-residence-craftsman-landscape-san-francisco-phvw-vp~140191739

So nece full sheers will do the trick and any plantings there will need care how much space is there . Not really an ugly view IMO just blah so either the sheers which willl work all the time or actual drpes (not fake panel ) to cover the whole wall

I don't think it's an either/or situation. You can plant something outside, and also have sheer curtain panels, along with a woven wood or bamboo shade. That would round out the area nicely and give you options for day and nighttime.

Another vote for landscaping! It doesn’t have to be expensive or require any real maintenance. Make sure the items chosen stay green all year, and light it at night for evening dining. It will do wonders for the view and will also expand the space by increasing your sight lines.

imo, landscaping will not ”expand the space and increase the sight lines.” imo, it will have the opposite effect. There is not enough space out there and imo landscaping is not the answer for this.

It’s a fairly narrow room and landscaping and or covering the window is just going to close it in. And the window(s) themselves are a nice architectural feature. They add a lot to the space.

There is nothing wrong with the view, as is. There just needs to be more interest in the room itself.

I’d remove the side panels no matter what you decide to do. Suggest custom roman blinds on lower windows and you don’t have to keep closed, as a bold graphic pattern complementing your room, will be what's noticed instead. Etsy has lots of choices.

https://www.etsy.com/listing/649566926/custom-roman-shade-in-radiant-ink?gpla=1&gao=1&utm_source=google&utm_medium=cpc&utm_campaign=shopping_us_ps-a-home_and_living-curtains_and_window_treatments-window_treatments&utm_custom1=k_Cj0KCQjwl8anBhCFARIsAKbbpyQolFluk1Q7Ve9uiqn4QyLEu1jgdKjcGt8AJYYDCIjwvYBMZ43pDVkaAgwPEALw_wcB_k&utm_content=go_12567673668_122422055031_507253754086_pla-305769660228_c__649566926_129044227&utm_custom2=12567673668&gclid=Cj0KCQjwl8anBhCFARIsAKbbpyQolFluk1Q7Ve9uiqn4QyLEu1jgdKjcGt8AJYYDCIjwvYBMZ43pDVkaAgwPEALw_wcB&epik=dj0yJnU9ZndGbjlYV1laa2x1V3haWFNIaU56YWJRYmFDa3NyU1UmcD0wJm49dGZuOVo0eDhMR0hHekp0VGx6QnJGQSZ0PUFBQUFBR2JjYXJz

Also suggest some large artwork to also draw the eye and finish off your really lovely room.

I'd go with the three pots of clumping bamboo from Olychick. Use a story pole outside to see how high a bench you would need to block the view from/to the neighbor's small window. A long bamboo pole, 10 or 12 feet, is probably more than long enough to serve as a story pole. Or use a ladder as a story pole.

Full width sheer curtains would be perfect in this room. Look at Vermont Country Store's selections https://www.vermontcountrystore.com/shop-by-style-curtains/category/sheer-curtains

for options less expensive than custom.

do you have space outside to plant a tree?

I second Vermont Country Store's full length sheers. I bought the pinch pleat sheers for my vacation home. They are very well made, look great and are cost friendly!

hang something sculptural on the fence or metal trellis with a flowering vine. morning glories and moon flowers are easy annuals to sow as seeds.

I had a similar view from a dining room window. I chose to put tall shrubs in planters in front of the fence. It was beautiful to have a mini-garden out the window.

Close the gate. A bad view would be looking at trash cans, or cars, or right into the neighbors window. If there is space, maybe some plantings. You can string up party lights that turn on for 4 hours at the same time every day.

Solar lights on fence, English ivy. View isn’t bad…just confining.

If you don’t want to do real ivy you can always buy artificial. Combined with some attractive solar lights.

If you do English ivy, plant it in a pot so it doesn't take over your whole neighborhood.