A vibrant 3D cartoon scene in the same style as the reference images. The whole monster family is outside their whimsical house, looking up in amazement at a huge, bright rainbow filling the sky. Lily (the purple daughter) is pointing excitedly at the rainbow. Bubu (the yellow son) is jumping up and down with joy. Plum (the small blue pet) is trying to fly up towards the rainbow. The parents, Luna (green) and Bruno (blue), are also in the scene, watching with happy expressions.
