So I started with the heart. Looking back now I'm not sure how I did it! Sort of took one scrap, sewed it, ironed it, slashed a bit off then matched up another scrap to form a shape.
Then I added some blue strips of other scraps sewn together to form the first border. I have cropped the photo here but below when I sewed on the second round of strips I left it untrimmed for the photo, just for some visual contrast! I think just one more border of strips and then it will be ready to join with all the square blocks. I did have 3 blocks left over so I unpicked them and used them for the strips too.