I can't take the credit for the inspiration of the fold edge of this card.
I had pinned a video on Pinterest by Brianna Thompson and
I decided to see if I could make it in Design Space with my Explore..
Here's what the side looks like:
And here's what the entire card looks like:
The paper came from Simon Says Stamp October Card Kit.
I made the black frame squares in DS as well.
Not bad.