Monochromatic Skies, drawing by Rina mukamal
Analogous Blue And green oceans, Picture by Jennifer Levine
Complementary sky/ocean, Picture by Dave Johnson
The first photo is monochromatic because it’s showing the sky with one color which happens to be blue and it also shows different shades of blue. The second photo isn’t analogous because the photo includes two colors that happen to be near each other on the color spectrum/wheel. The last photo is complementary because it shows two complementary colors which happens to be blue and orange.