four source photos

Is it just 4 or are there more?

I find it hard to believe there is only 4. There are clearly more data in video

https://i2.paste.pics/645fe17e418b2cb1f6179e0b6671a170.png like back side of camera here (it is kinda visible but much poorer compared to video). Or existence of a 2nd white sheet in background. But correct me if it is only 4 and you have a source on that