Color theory

Color theory - student project

I am sorry for my writting skills, english isn't my first language. To my project I thought of the words :  "sleeply", "serene" and "lovely". "Sleepy" was actually the last one that I made, I had already some ideas for the other two, I knew that I wanted "serene" to be green, a light and bluish green, kinda alluding to nature and the ocean, and I also knew that I want "lovely" to be warm. Then I thought that the last one should use more dark colors to contrast with the other two, so a sleeping character come to mind.