My iPhone got stolen. ICloud?

So a few months ago my white iPhone 5c got stolen at an arcade, I called and canceled that phone and with my phone insurance I got a new iPhone, now I went to go find a picture and yesterday a bunch of "recent photos" came up of a girl taking selfies, I don't know how iCloud works… Can she see all my pictures I've taken? How do I deal with this?

She stole your phone so she probably reset everything so that she ca use it, so yh she probably deleted your pictures aswell… Not sure about how you can deal with it but try reporting it to the police if your really worried and have got personal information on there

I'm not sure if she's able to see your pictures, but I do know that you can delete everything off that iPhone from iCloud. That way it resets everything on it, and it should take off your Apple information. That way she can't use your Apple ID to buy things.