Monochromatic
This is actually the view outside my basement apartment. I promise it isn't that gloomy in real life haha. This is a good example of monochromatic coloring, because there are simply no colors in this image other than black and white.
Saturated
What a lovely view, don't you think? This is actually from the house of a friend that will only occasionally invite me over. The main area of saturation here is the sky, which has bursts of beautiful oranges and purples. Even the grass has rich greens and the leaves on the ground are dark orange.
Unsaturated
In this photo, there is very little color, and the color that is there does not pop. It is mostly grays, blacks, and whites, with splashes of red. But even the red isn't bursting with color
Great photos! That first one is pretty fantastic especially; the color is without a doubt monochromatic, yet there's still contrast of tone which makes the image exciting to look at. The second picture is saturated without a doubt. The third one is definitely desaturated, especially the reds, though I do wish there was more color in the image aside from just the red marker though. Still, great images all around.