I made this according to instructions, as I had not read other than the topic in a hurry.
Use the photo of Emmy Destinn. Or express the word “Diva” some way in your collage. Or use both, a photo and a word. Word don’t have to show up in your collage.
ART BY RITVA 
Absolutely stunning collages!
But you totally got it right with the previous collages too, the topic is the main clue. 🙂