I saw a card made by someone else that was very similar to this and just had to make my own. I used the Botanical Blooms stamp set which is available for free during Sale-A-Bration along with a greeting from Upsy Daisy. Love it!
The colors are Almost Amethyst (why don’t I use this color more often??), Certainly Celery, Basic Black and Whisper White.
I usec the paper piercer from the Crafter’s Tool Kit to pierce holes in the scallops but unfortunately you can’t see that very well in the picture. You also can’t see the Amethyst I sponged on the edges of the white cardstock.
The original creator of this card used designer paper but I did not have any to match so I stamped in Almost Amethyst craft ink onto Black cardstock to create my own.
I hope this gives you an idea. Sometimes if you’re stuck for ideas it’s nice to start using someone elses idea and then you can make small little changes along the way (changes to suit your likes or changes because of the supplies available to you) to make it your own.