I have no doubt that what I am seeing is the same person but I have to admit that they somehow look different from each other, even the first person you have detected. What it looks like to me is they are adding moles to their faces and adjusting the curves of their faces which all can be done via photoshop, it only means that scammers are trying their best not to get caught with their fake project. Nevertheless you still caught them having plagiarized content on their whitepaper.