Because of that great discovery, I've decided to compliment it with my own experience and that is why I started doint light tutorials:
Color and light tutorial --> [link]
Color composition tutorial --> [link]
But I think that I did something wrong, I tryed to explain color composition just by working in 1 picture, and so that you understand that it is necesary that you see more than one.
That is why I decided to make this picture selection and show you some pictures that I think represent the color composition very well. Here they are ordered by issues:
COLORFULLNESS:

:thumb201213947:ATMOSPHERE:







COLOR CONTRAST:
:thumb202272540:


:thumb202302253:
COLOR ACENTS:











¿Dónde tienes el tutorial de armonía? Estoy buscando alguno útil, que tengo una idea en mente en la que la atmósfera y el objeto son colores casi complementarios y viendo lo que he hecho en otras ocasiones, ya imagino que haré un fondo con un pegote encima :\
Gracias por lo que has hecho