I don't know what the original image looked like before you applied the style, but I can see the analogous colors in this image. I think they were all there to begin with, but with different saturation's and values. See my message just below Dady's.
Analogous and Monochromatic color schemes are very similar.
The Monochromatic color scheme uses variations in the lightness/darkness (value) and saturation (how much or how little gray a color contains) of a 'single' color.
The Analogous color scheme uses colors which are similar to each other (because they are in close proximity) on the color wheel. They are usually of the same value and saturation, but this isn't a hard and fast rule.
As you can see by the above definitions, the basic difference between the two is whether or not a 'single' color has been used. In the case of your image, both yellow-green and blue-green are incorporated, so the image leans more toward being Analogous.
I can give you an example of a strictly Monochromatic color scheme if you want it. Just let me know.