Thank you all again for your comments!
Ladysuds, I'm very sorry for your loss.
I don't remember where I found the design. It was in my head a long time to make a special memory quilt for Julian, it had to represent the triplets, the passing of Julian and the surviving of the twins. I know I did modify the design to how I wanted and needed it to be.
Look around on the internet, search in books and you will find a design just for you and your lost twins.