Display lightroom image in wordpress site using "embed"

I am trying ti display a light room image in my wordpress site (without downloading it to wordpress).
I create an "embed" for the image in lightroom - as follows:

<div class='lr_embed' style='position: relative; padding-bottom: 50%; height: 0; overflow: hidden;'><iframe id='iframe' src='https://lightroom.adobe.com/embed/shares/cfd29676b6624291ae90a235b37fffff/slideshow?background_color=%232D2D2D&color=%23999999' frameborder='0'style='width:100%; height:100%; position: absolute; top:0; left:0;' ></iframe></div>

But it does not seem to work. 
I'm using the version of wordpress on the wordpress.com site - and I've made sure to use the "Edit as HTML" for the block.

Is this even possible? 

Thanks for any help

---------------------------------------------

Thread moved to Lightroom Ecosystem