Colour keys from "A Monster in Paris"

Hello guys!

Here to upload some examples that illustrate my idea of conveying mood with the color scheme.
All of these were done by Aurelien Predal.

A very sombre mood compared to below.

As you can see, the artist is aware of how many colors he uses and the saturation.

More nice examples.

We could probably use these schemes for the "real time" sequence with the usage of browns and the neutral color temperature .

On a final note. I liked how the artist used only two colors in some keys.

Notice that they're opposites. Blue and yellow. Cold and warm. Maybe we could put this to use?
Click here if you want to see the rest of the colour keys by him.