My card is an A2 card and I used the Confetti Party Rainbow Dies to cut out the frame of the card.  I then used the Spectrum Of Love Slimline Paper Pack to cut out the arches in rainbow order.  I also cut out the arches in white to layer the arches so they would give the rainbow some depth.  I then die cut the Rainbow Hugs Word w/Shadow die with black card stock and cut the shadow with vellum.  I added some hearts from the Bright Rainbow Hearts Sprinkles and added them to the card.  I also added some hearts to the clouds from the Brilliant Pink Hearts.