Yesterday I taught this card at a card class. Mononchromic card using Bermuda bay and Coastal cabana. We did use a little colour to colour in the centre of the flower using the Blendabilities.
I used Flower shop and Petite Petals as the flowers to decorate.
Any colour would work with this. I may have to try Elegant eggplant or the new Blackberry Bliss next time.