It seems the trial prototype worked and they are adding more such floaters into this pond. Someone once told me that I should not plant Strelitzia and Heliconia together because ecologically they are from different habitats.
But I guess at times it doesn't quite matter, does it? This is all about creativity or creative ideas, just like these Sarracenia, Oenanthe and Thalia etc are planted together to form an interesting combination. That is all that really matters.