Fantastic!

Maybe many people don't really understand why the mountains and sky look blue.

Actually, the mountains look blue for the same reason that the sky looks blue. A very distant mountain looks blue a little lighter than a distant medium (distance determines light blue or old). We see bluish colors when we are far from the mountains, and that makes the mountain look blue.

The farther the mountain, the bright blue appears. The sky is blue because small air molecules of oxygen and nitrogen, water molecules, and dust motes interact with light. The small size of these particles means that high-frequency light (like, blue) is far more likely to interact than low-frequency light (like red). Interaction reflects blue light in all directions. As a result, we are more likely to see blue light than other colors. So, the sky looks blue.

The dark mountains far reflect a little light into our eyes. Our eyes receive more light than sunlight scattered by small molecules between us and the mountain. That the scattered sunlight is blue. So, it is not the scattering of light reflected from the mountain that makes the mountain appear blue, but the scattering of light between us and the mountain.

Hopefully give a little enlightenment in implementing a mountain and sky view as seen in your very artistic work.