Looking through Internet I found the website where there are work of different people. The illustrations of Caia Koopman got my attention. It like kids illustrations for adults.

I like the dark aspect of the illustration, not in color but in the style. It is great how line and color are combined. Take a look to the overall site, the artist has interesting works

http://lookslikegooddesign.com/

This is a series of illustrations for Brawndo Bomber a german energy drink brand. Each of the images from part of a good marketing campaign. Every illustration is set in the center of the composition over a very light background which make the figure stands out. Also the warm background color, the dynamism of those figures and what they are and represent increase the concept of the energy drink.

http://www.advertolog.com/brawndo/