We cannot copy anything from other sites, words or images. It appears that you may upload images created by you. Articles inclusive of images should be original.
So it seems that it is better to submit articles without images. But onething that is not clear to me is that suppose if one is writing article about tigers then in that case its not possible for him or her to move out to the jungle and get a snapshot of a live tiger so in that case what to do? A help in this case will be appreciated....