It might be a little too thematic representing Canada, but what about something like these?

Placed randomly on either side....

copper leaves

Here is another idea to consider:

How about a metal decorative screen?

Here is a company that wili make a custom design laser cut screen.

Here are some pictures and sample of a screen. Perhaps one will work for you.

GTM Artisan metal

Custom metal screen.

Decorative Metal Screens and Laser Cut Designs – GTM Artisan Metal

https://www.gtmartisanmetal.com/designs/

1. Click on 'designs' on website

2. Click on 'botanicals'.

These are šime choices that will comes up.

These may work weil with outdoor weather and by a hot tub.

You can inquire about pricing quotes directly. Have the dimensions of your desired size panel on hand.

Plants

What about faux plants. Either love the look of vines and leafy plants. But if your style is more modern than traditional, farmy .... I would just place a sheet of faux boxwoods on it. Maybe “frame it” also

When my daughter had an apartment, she would hang seasonal decorative wreaths on her side of the privacy/divider screen. She placed a large planter at the base and planted seasonal flowers. or plants. Used tiny lights at Christmas, as well!

Can you show the whole backyard space . I think it looks odd to have these 2 different fence styles so I need to see the whole space. As for what to hang on that space look at some outdoor art there should be tons of it in Van. I googled metal art for exterior use and found lots.

not necessary

Maybe some sort of metal or glass artwork... maybe painting a mural on it.