~snip
But honestly I don't know how to identify computer-generated images...
Forget about the computer-generated images for now. What about all other images? they were not generated, those are images of real people and the scammer is stealing people's identity. Do you know how to search for them? There are guides on this forum that teaches you how to search for such images.
The BM created the ANN as well. He didnt do his due diligence, and because of him more people fell into the scammer trap.
There are fake exchanges that wants to scam people, and exchanges that just wants the money (listing fees, transactions fee, etc... They dont care.
And to answer your question, I dont know if they are scams or not, we didnt check. Have you checked if they have a team? legal paperwork/permits, etc..?