Ok I see were the comments regarding "Ayu recycling performances" are coming from, but it looks like there might be enough room to expand further ideas in this set up. I hope she is going to do that for the big tour.
Not really super interesting but for a presentation project I once did set and costume design for Ayu riding a big Japanese dragon with lazer eyes and there came steam/smoke from the nose. In the end it was intended to fly over the audience and she would sing WARNING. Secretly I hope something like that will once happen in her shows. Especially in an oriental theme! The crystal elephant was close enough