A good looking cake is worth so much on its own. You almost don't want to cut into it for fear of destroying the design. But man! Aren't you glad you did? There are rainbows inside! The world needs to know.
Normally I'd scream overkill at a cake this busy but there is some amazing balance going on here. A striped rainbow heart inside a striped rainbow cake? A rainbow of fondant sprinkles so perfect they must have been placed there by very patient elves? I swoon for this kind of overkill.