FaceTime/FaceTime Audio calls to ipad and iphone simultaniously from overseas (15 calls)
…to my iPad and iPhone simultaneously […] at the same time on each device


You will receive simultaneous calls on all devices with the same Apple ID. This is how FaceTime works and is not due to any action on the part of the caller.


  but each time my face was visible


The background to a FaceTime call that has not been answered will be the camera feed from the front camera on the device. This is not transmitted anywhere as the call has not been answered. Any correlation between who is shown on this preliminary screen and the caller is pure coincidence.