Subject: With a mantle that varies from pale pink to splashy mauve and rhinophores as well as gills going from pale yellow to bright orange, dark red and even deep purple, the colour palette of Bullock’s Hypsolodoris (hysolodoris bullocki) can be called complex.
Technique: It is always nice to get some of the blue water mass in the background. Using the vast blue of the ocean as background not only shows that the footage wasn’t filmed in an aquarium but it also adds a bit of mystery (what lies or lurks behind?) to the scene. Darkening the background makes the colourful nudibranch pop.