Artist Drew Northcott brings us "Vincent Van Gordon", a Van Gogh inspired portrait of everyone's favorite headcrab killing physicist.
According to Northcott, there might be character similarity between Freeman and Van Gogh. He adds, "There's certainly a physical resemblance anyhow." That's certainly better than Freeman mailing his ear to a prostitute.
Vincent Van Gordon - half life [Deviant Art via GameFreaks]