This is one of the first faces I've ever drawn that I'm proud of. It was drawn at work, between calls, it's also about the only one I've ever colored that I was happy with how it turned out. 

Another face drawn at work, came out of some scribbles that actually weren't intended to be a face at first, but again, one that I surprised myself with having created. 

A little more stylistic than I normally get, also drawn at work, ironically while I was working with a particularly annoying customer.