This happens to me from time to time and sometimes it results in a good one-off illustration and other times you end up with a dud that ends up getting filed away as a practice of some kind. This next illustration is more of the former.
I made this a few weeks back when I noticed that Buzz Feed and Get Out of There Cat was posting a handful of cat pictures with either heterochromea, perfect two tone color division in the face or both. I decided to read the comments for these images and noticed that a lot of people were joking that they hoped the cat's name was Harvey Dent.
I'm assuming you can figure out what happened next if you read the introductory paragraph, but in case you didn't this happened:
The coloring, while simple, was also carefully considered along with the atmospheric texture work in the foreground and background. I wanted the illustration to be silly but I wanted to retain a level of seriousness and intimidation that such a character would bring into a personal encounter.
Compared to other silly one off illustrations, this one was really well received by my audience on my Facebook page and for a good reason. It was unexpected and it's funny!