white on white

this weeks challenge on the photo course is to shoot white on white or black on black. This was shot at 1 1/3 stops over , my second guess as initially did at 1 2/3 but seemed too bright. Haven't done any processing, which is unusual for me.  Added as an extra a little cormorant landing in the river spotted late afternoon on my way to the shops. I should have thought and blipped the bird saving the flower to photograph for tomorrow's blip! Does anyone have a black cat I can borrow for tomorrow?