I painted one at home and it evolved into another shell painting. I used this painting as an example of what you could create using this method.
I did a demo in class to showed how to create our background and later added what I could visualize in the textures and colors. I showed them how to see and paint the flowers I saw there. I wasn't able to finish it in class, but they got the idea. I did finish it at home and will bring it to class next week.
They did have fun watercolor painting this way and here they are with their paintings.