I helped a friend with some color and shading to add depth to the picture he was working on. That's his work on the right, and my scribbly airbrushed color example on the left. Just thought it was a half decent example of the color stuff I was talking about before. Note: the color I added on is not any part of a finished work, it's just an example to show how to push the color a little. I know it's messy.  Art is by Ozawk.