Wow that's a great head, try contacting the GM's maybe they can help you.

Yeah, I asked Erth and he told me to ask here.

a thousand people own heads just like that
the chances of someone remembering that exact head are slim.

Use it, if someone sees you, you will surely find out.
Best tactic ever.

^Fully agreed with all comments above.
Wear it, no worries

Or get reported to GM's by people for wearing it..

If he found it just like that, it could simply be the artist's own fault for not watermarking/posting the raw on the internet anyway?

True, But it could have been stolen from custom folder ect.

No there's absolutely no risk involved. I'm sure he will be fine.