I have seen this several times myself. It happen to a good friend who it didn't end up so well for. But it also happened to me. And my wife and I are very happy together for almost a year now. And the fact I am now living in China with her takes a lot of stress off of her. To be honest I was like you thought it was a risk. But my heart told me to take it. And it has been a tough road, She had a very jealous sister that caused us problems. and a very over zealous translator that ended up,,,, Well that's another story. ANYWAY
Go with your true gut feeling on it. Usually it will be the right choice.
If she is willing to kick down pictures so quick. Ask for the phone number. Skype international calls are cheap. You can call her. Maybe it's a scam. Maybe it's the real deal. Other than a little time and a couple bucks. You really have nothing to lose to check it out.