A young explorer on an expedition in the jungle.
I am a big fan of the video games developed by Nintendo and I especially like the character of Yoshi. This picture started out as an attempt to design a more realistic version of Yoshi.
Aside from the fact that this is a bipedal dinosaur used as a mount, not much of that initial idea ended up in the final result.
This might be interesting for you as well:
On of the roles of the composition of an image is to depict the most important elements of the picture in a clear, recognizable manner. For color pictures, not only the placement of the elements is playing a central role, but the color composition as well.
An obvious method is to separate diffrent elements or layers within the image like foreground and background by different color saturations of a difference in lightness.
There are many approaches for setting up a color composition. To acquire some helpful rules of thumb, it can be useful to look at some of the oldest works of visual design in history: Coat of arms and flags.