I wasn't familiar with the game in question, but once I looked it up I got what you were going for. I think it's the dark hoodie that's throwing you off the style - the portraits from that game mostly avoid dark colors other than the pure black, so it's a super posterized, stylized look. Here though the big swath of dark grey makes the color choices on the face look washed out rather than a deliberate stylistic choice. Other than that though I think this nails the style.
That's a good point, I didn't actually think about it. Thanks for the feedback and the advice.